100525 + Interview Questions in GENERAL QA IN GENERAL AWARENESS

1.	Rearrange the segments to form questions.1. accept the judgement/did the man/the jungle lords / of?2. Mara tie / the creeper/ to a tree / why did?3. was the thief/ his attitude / really humane / in / ?4. does technology/in contrast/to religion/stand?5. treated as/a / was Mara /mad man ?6. retain / did Douglass /his/ self-confidence ?7. why did /the farmer / suicide / commit ?8. the narrator/how does/go/ to Verona?9. what did /do / during the German invasion / the boys ?10. the crude realities of life/is love/of any value / before ?
Answer» 1. Did the man accept the judgement of the jungle lords? 2. Why did Mara tie the creeper to a tree? 3. Was the thief really humane in his attitude? 4. Does technology stand in contrast to religion? 5. Was Mara treated as a mad man? 6. Did Douglass retain his self-confidence? 7. Why did the farmer commit suicide? 8. How does the narrator go to Verona? 9. What did the boys do during the German invasion? 10. Is love of any value before the crude realities of life?

1.

Rearrange the segments to form questions.1. accept the judgement/did the man/the jungle lords / of?2. Mara tie / the creeper/ to a tree / why did?3. was the thief/ his attitude / really humane / in / ?4. does technology/in contrast/to religion/stand?5. treated as/a / was Mara /mad man ?6. retain / did Douglass /his/ self-confidence ?7. why did /the farmer / suicide / commit ?8. the narrator/how does/go/ to Verona?9. what did /do / during the German invasion / the boys ?10. the crude realities of life/is love/of any value / before ?

Answer»

1. Did the man accept the judgement of the jungle lords?

2. Why did Mara tie the creeper to a tree?

3. Was the thief really humane in his attitude?

4. Does technology stand in contrast to religion?

5. Was Mara treated as a mad man?

6. Did Douglass retain his self-confidence?

7. Why did the farmer commit suicide?

8. How does the narrator go to Verona?

9. What did the boys do during the German invasion?

10. Is love of any value before the crude realities of life?

Discussion

2.	I was quite astonished ______ his quick reaction. A) with B) of C) at D) on
Answer» Correct option is C) at

Discussion

3.	He suffers rather badly _____ migraines. A) of B) from C) for D) as
Answer» Correct option is B) from

Discussion

4.	They are very similar. I often mistake one _____ the other. A) through B) of C) with D) for
Answer» Correct option is D) for

Discussion

5.	She was absorbed ______ an exciting story. A) with B) in C) on D) of
Answer» Correct option is B) in

Discussion

6.	he stories about his wealth are quite ________; he is not particularly well off. A) unprovoked B) incredulous C) unfounded D) irrational E) undeserving
Answer» Correct option is C) unfounded

Discussion

7.	He looked ashamed ______ his foolishness. A) at B) of C) about D) with
Answer» Correct option is B) of

Discussion

8.	His opinions are directly contrary ______ yours. A) to B) with C) about D) on
Answer» Correct option is A) to

Discussion

9.	The Minister accused the farmers of ________ the potato shortage in order to force prices up. A) depleting B) expecting C) exploiting D) misapplying E) misappropriating
Answer» Correct option is C) exploiting

Discussion

10.	They felt quite certain ______ their failure. A) of B) at C) about D) with
Answer» Correct option is A) of

Discussion

11.	He was accused ______ theft by the police. A) on B) over C) from D) of
Answer» Correct option is D) of

Discussion

12.	Having worked hard for three months, he succeeded ____ his exam. A) to pass B) in to pass C) in passing D) passing
Answer» Correct option is C) in passing

Discussion

13.	We are very busy at the office. I must ____ my holiday for a while. A) put up B) put through C) put off D) put in
Answer» Correct option is C) put off

Discussion

14.	They accused him ___ a thief. A) for being B) as being C) of being D) to be
Answer» Correct option is C) of being

Discussion

15.	We ______ at noon to have lunch. A) broke up B) broke off C) came about D) went over
Answer» Correct option is A) broke up

Discussion

16.	Why can mitochondria be considered the power plants of the aerobic cells?
Answer» Mitochondria are the “power plants” of aerobic cells because within them the final stages of the cellular respiration process occurs. Cellular respiration is the process of using an organic molecule (mainly glucose) and oxygen to produce carbon dioxide and energy. The energy is stored in the form of ATP (adenosine triphosphate) molecules and later used in other cellular metabolic reactions. In mitochondria the two last steps of the cellular respiration takes place: the Krebs cycle and the respiratory chain.

Discussion

17.	50 ml rum is added to a cocktail containing whiskey and brandy in the ratio 3 ∶ 2. Now, 70 ml of mixture is taken out and 15 ml of rum is added. What is the percentage of whiskey in the final mixture, if the quantity of the cocktail was 300 ml?1. 52%2. 55%3. 35%4. 39%5. 49%
Answer» Correct Answer - Option 5 : 49% Quantity of cocktail = 300 ml Ratio of whisky and brandy = 3 ∶ 2 ∴ Quantity of whisky = (3/5) × 300 = 180 ml Quantity of brandy = (2/5) × 300 = 120 ml Now, 50 ml of rum is added to cocktail Quantity of mixture = 300 + 50 = 350 ml 70 ml of mixture is taken out ∴ Quantity of whisky removed = 70 × (180/350) = 36 ml Quantity of brandy removed = 70 × (120/350) = 24 ml Quantity of rum removed = 70 × (50/350) = 10 ml 15 ml rum is added to mixture Quantity of rum in mixture = 50 – 10 + 15 = 55 ml Now, Quantity of whisky in mixture = 180 – 36 = 144 ml Quantity of mixture = 350 – 70 + 15 = 295 ml ∴ Required percentage = (144/295) × 100 = 48.81% ≈ 49% ∴ The percentage of whiskey in the final mixture is 49%

17.

50 ml rum is added to a cocktail containing whiskey and brandy in the ratio 3 ∶ 2. Now, 70 ml of mixture is taken out and 15 ml of rum is added. What is the percentage of whiskey in the final mixture, if the quantity of the cocktail was 300 ml?1. 52%2. 55%3. 35%4. 39%5. 49%

Answer» Correct Answer - Option 5 : 49%

Quantity of cocktail = 300 ml

Ratio of whisky and brandy = 3 ∶ 2

∴ Quantity of whisky = (3/5) × 300 = 180 ml

Quantity of brandy = (2/5) × 300 = 120 ml

Now, 50 ml of rum is added to cocktail

Quantity of mixture = 300 + 50 = 350 ml

70 ml of mixture is taken out

∴ Quantity of whisky removed = 70 × (180/350) = 36 ml

Quantity of brandy removed = 70 × (120/350) = 24 ml

Quantity of rum removed = 70 × (50/350) = 10 ml

15 ml rum is added to mixture

Quantity of rum in mixture = 50 – 10 + 15 = 55 ml

Now, Quantity of whisky in mixture = 180 – 36 = 144 ml

Quantity of mixture = 350 – 70 + 15 = 295 ml

∴ Required percentage = (144/295) × 100 = 48.81% ≈ 49%

∴ The percentage of whiskey in the final mixture is 49%

Discussion

18.	The place where rock musicians and orchestras play is called a ___.
Answer» Correct answer is concert hall

Discussion

19.	A place which serves drinks such as beer and whiskey and where people go to relax and meet friends is called a
Answer» Correct answer is bar or pub

Discussion

20.	A gas is found to obey the law `P^(2)` V= constant the innitial temperature and volume are `T_(0)` and `V_(0)`. If the gas expands to volume `2V_(0)` , its final temperature becomes-A. `sqrt(2) T_(0)`B. `2T_(0)`C. `T_(0)//2`D. ` T_(0)//sqrt(2)`
Answer» Correct Answer - A `P^(2)V` = constant `implies (T^(2))/(V)` = constant `implies T_(2) = sqrt((v_(2))/(v_(1))) T_(1) = sqrt2 T_(0)`

Discussion

21.	In a series LR circuit, the voltage drop across inductor is 8 volt and across resistor is 6 volt. Then voltage applied and power factor of circuit respectively are:A. Volatage of the source will be leading current in the ciruitB. Volatage drop across each element will be less the appliced voltageC. Power factor of circuit will be 4/3D. None of these
Answer» Correct Answer - D Since cos `theta = (R)/(Z) = (IR)/(IZ) = (8)/(10) = (4)/(5) ` (cos `theta` can never be greater than 1) Also , `IX_(C) gt IX_(L) implies X_(C) gt X_(L)` Current will be leading In a LCR circuit `V = sqrt((V_(L) - V_(C))^(2) + V_(R)^(2)) = sqrt((6 - 12)^(2) + 8^(2))` V = 10 , which is less than voltage drop across capacitor .

Discussion

22.	In a series LR circuit, the voltage drop across inductor is 8 volt and across resistor is 6 volt. Then voltage applied and power factor of circuit respectively are:A. 14V,0.8B. 10V,0.8C. 10 V,0.6D. 14 V,0.6
Answer» `V_(L)=8 V,V_(R)=6V,V=sqrt((V_(L)^(2)+V_(R)^(2))=10 V` Power factor `=cos phi=(V_(R))/V=6/10 =0.6`

Discussion

23.	There are two cylinder shaped wooden billets, each having mass M, in a vertical wall sewage, which contains water in it. The two billets have same size and same material , they touch each other and walls of sewage. One of them is totally under water, whilst the other one is immersed only half into water. Friction is negligible if density of wood is given by `(3)/(x)p_(omega) (p_(omega) "is density of water")`then find x
Answer» Correct Answer - 4 `3/2 Vpomegag=2Vpomegag` `p_(s)=(3)/(4)pomega`

Discussion

24.	In a particular R-L series circuit a voltage of 10V at 50 Hz produces a current of 700mA while the samevoltage at 75 Hz produces 500 mA. What are the values of circuit constants?
Answer» (i) Z = √(R² + (2π x 50L)²) = √(R² + 98696L²); V = IZ or 10 = 700 x 10^-3√(R² + 98696L²) √(R²+ 98696L²) = 10/700 × 10⁻³ = 100/7 or R² + 98696 L² = 10000/49 ...(i) (ii) In the second case Z = √(R² + (2π x 75L)²) = √(R² + 222066L²) ∴ 10 = 500 x 10^-3√(R² + 222066L²) i.e √(R² + 222066L²) = 20 or R² + 222066L² = 400 (ii) Subtracting Eq. (i) from (ii), we get 222066 L²− 98696 L² = 400 − (10000/49) or 123370 L² = 196 or L = 0.0398 H = 40 mH. Substituting this value of L in Eq. (ii), we get, R² + 222066 (0.398)² = 400 ∴ R = 6.9 Ω

24.

In a particular R-L series circuit a voltage of 10V at 50 Hz produces a current of 700mA while the samevoltage at 75 Hz produces 500 mA. What are the values of circuit constants?

Answer»

(i) Z = √(R² + (2π x 50L)²) = √(R² + 98696L²);

V = IZ or 10 = 700 x 10^-3√(R² + 98696L²)

√(R²+ 98696L²) = 10/700 × 10⁻³ = 100/7

or R² + 98696 L² = 10000/49 ...(i)

(ii) In the second case Z = √(R² + (2π x 75L)²) = √(R² + 222066L²)

∴ 10 = 500 x 10^-3√(R² + 222066L²) i.e √(R² + 222066L²) = 20 or R² + 222066L² = 400 (ii)

Subtracting Eq. (i) from (ii), we get

222066 L²− 98696 L² = 400 − (10000/49) or 123370 L² = 196

or L = 0.0398 H = 40 mH.

Substituting this value of L in Eq. (ii), we get, R² + 222066 (0.398)² = 400

∴ R = 6.9 Ω

Discussion

25.	Bell metal contains 80% copper the mass of bell metal which contains 1.5*1020 atoms of copper is
Answer» According to Avogadro's constant, 1 mole of a any substance has exactly 6.022 × 10²³ atoms or molecules. Find the number of moles in the bell metal: If 6.022 × 10²³ atoms = 1 mole Then 1.5 × 10²⁰ = 1 ×1.5 x 10²⁰/6.022 × 10²³ = 0.00025 moles molar mass of Cu is 64 mass = moles × molar mass = 0.00025 mol × 64g/mol = 0.016 g Therefore 1.5×10²⁰ atoms of copper has a mass of 0.016 g This 80% of the piece of metal, weight of the mass is 100% = 100/80 × 0.016 = 0.02 g The piece of metal has a mass of 0.02 g

25.

Bell metal contains 80% copper the mass of bell metal which contains 1.5*1020 atoms of copper is

Answer»

According to Avogadro's constant, 1 mole of a any substance has exactly 6.022 × 10²³ atoms or molecules.

Find the number of moles in the bell metal:

If 6.022 × 10²³ atoms = 1 mole

Then 1.5 × 10²⁰ = 1 ×1.5 x 10²⁰/6.022 × 10²³

= 0.00025

moles molar mass of Cu is 64

mass = moles × molar mass

= 0.00025 mol × 64g/mol

= 0.016 g

Therefore 1.5×10²⁰ atoms of copper has a mass of 0.016 g

This 80% of the piece of metal, weight of the mass is 100%

= 100/80 × 0.016 = 0.02 g

The piece of metal has a mass of 0.02 g

Discussion

26.	She ______ to stay at home. A) uses B) prefers C) like D) rathers
Answer» Correct option is B) prefers

Discussion

27.	Oligogenic resistance is also called ----------- a. Major gene resistance b. Minor gene resistance c. Both (a and b) d. None of all
Answer» a. Major gene resistance

Discussion

28.	He drinks ______ quickly. A) bear B) beer C) bare D) bar
Answer» Correct option is B) beer

Discussion

29.	What are the substances that constitute the chromatin? What is the difference between chromatin and chromosome?
Answer» The chromatin, dispersed in the nucleus is a set of filamentous DNA molecules associated with nuclear proteins called histones. Each DNA filament is a double helix of DNA and thus a chromosome.

Discussion

30.	The bacteria were discovered by- (a) Pasture (b) Koch (c) Leewenhoek (d) Robert Hook
Answer» The bacteria were discovered by Leewenhoek.

Discussion

31.	What are plant cell vacuoles? What are their functions? What is the covering membrane of the vacuoles called?
Answer» Plant cell vacuoles are cell structures delimited by membranes within which there is an aqueous solution made of various substances like carbohydrates and proteins. In young plant cells many small vacuoles can be seen; within adult cells the most part of the internal area of the cell is occupied by a central vacuole. The main function of the vacuoles is the osmotic balance of the intracellular space. They act as “an external space” inside the cell. Vacuoles absorb or release water in response to the cellular metabolic necessities by increasing or lowering the concentration of osmotic particles dissolved in the cytosol. Vacuoles also serve as a storage place for some substances. The membrane that delimits the vacuoles are called tonoplast, named after the osmotic function of the structure.

31.

What are plant cell vacuoles? What are their functions? What is the covering membrane of the vacuoles called?

Answer»

Plant cell vacuoles are cell structures delimited by membranes within which there is an aqueous solution made of various substances like carbohydrates and proteins. In young plant cells many small vacuoles can be seen; within adult cells the most part of the internal area of the cell is occupied by a central vacuole.

The main function of the vacuoles is the osmotic balance of the intracellular space. They act as “an external space” inside the cell. Vacuoles absorb or release water in response to the cellular metabolic necessities by increasing or lowering the concentration of osmotic particles dissolved in the cytosol. Vacuoles also serve as a storage place for some substances.

The membrane that delimits the vacuoles are called tonoplast, named after the osmotic function of the structure.

Discussion

32.	What are the morphological, chemical and functional similarities and differences between lysosomes and peroxisomes?
Answer» Similarities: lysosomes and peroxisomes are small membranous vesicles that contain enzymes and enclose residual substances from internal or external origin degrading them. Differences: lysosomes have digestive enzymes (hydrolases) that break substances to be digested into small molecules; peroxisomes contain enzymes that degrade mainly long-chained fatty acids and amino acids and that inactivate toxic agents including ethanol; within peroxisomes there is the enzyme catalase, responsible for the oxidation of organic compounds by hydrogen peroxide (H₂O₂) and, when this the substance is in excess, by the degradation of the peroxide into water and molecular oxygen.

Discussion

33.	Excessive use of opium caused- (a) Loss in weight of the body (b) Loss of Apetite (c) Infertility (d) All of the above
Answer» (d) All of the above

Discussion

34.	A particle of mass 0.2 kg moves along a path given by the relation : `vec(r)=2cos omegat hat(i)+3 sin omegat hat(j)`. Then he torque on the particle about the origin is :A. `sqrt(13) hat(k) Nm`B. `sqrt((2)/(3)) hat (k) Nm`C. `sqrt((3)/(2)) hat(k) Nm`D. `0 hat(k)`
Answer» Correct Answer - D `L = m lfloorvec(v) xx vec(V)rfloor` `V = -2omega sin omega that(i) + 3omega cos omega t hat(j)` `\|(hat(i),hat(j),hat(k),\|),(2 cos omega t,3 sin omega t,0,= hat(R) [6 omega cos^(2) omegat + 6omegat sin^(2) omegat]),(-2 omega sin omega t,3 omega cos omega t,0,=6omega hat(k) "cons" tan t)\|`

Discussion

35.	Which one of the following equation is correct for the circuit shown. The currents in each branch of circuit are indicated and all three cells are ideal A. `2-I_(1)-2I_(2)=0`B. `2-2I_(0)-2I_(2)-4I_(3)=0`C. `4-I_(1)+4I_(3)=0`D. `-2-I_(1)-2I_(2)=0`
Answer» Correct Answer - D Applying Kirchoff voltage law in left loop. `-2 + I_(1) + 4 + 2I_(2) = 0 " " 2 + I_(1) + 2I_(2) = 0`

Discussion

36.	What is Tranquilizers? Explain it with examples.
Answer» Drugs which are used in patients having mental tension & worries are called tranquilizers. For example:– (i) Benzodiazepins – Used in case of mental patient and given mental peace to them. (ii) Phenothiazines – It stimulate the patient and given mental peace through eradicating mental worriness. (iii) Reserpine – It is obtained from Rauvolfia serpentina and very effective in mental tension and worriness.

36.

What is Tranquilizers? Explain it with examples.

Answer»

Drugs which are used in patients having mental tension & worries are called tranquilizers.

For example:–

(i) Benzodiazepins – Used in case of mental patient and given mental peace to them.

(ii) Phenothiazines – It stimulate the patient and given mental peace through eradicating mental worriness.

(iii) Reserpine – It is obtained from Rauvolfia serpentina and very effective in mental tension and worriness.

Discussion

37.	A stationary circular loop of radius a is located in a magnetic field which varies with time from t = 0 to t = T according to law `B = B_(0) t(T - t)`. If plane of loop is normal to the direction of field and resistance of the loop is R, calculate magnitude of charge flown through the loop from instant t = 0 to the instant when current reverses its direction.A. `(pi^(2)a^(2)B_(0)T^(2))/(R)`B. `(pi^(2)a^(2)B_(0)T^(2))/(4R)`C. `(4pi^(2)a^(2)B_(0)T^(2))/(R)`D. None of these
Answer» Correct Answer - B Since magnetic field strength B varies with time, therefore an emf is incuced in the loop ans a current starts flowing through the loop. Due to flow of current heat is generated. At an instant t, flux linked with the loop. `phi=pi s^(2)B_(0)(tT-t^(2))` Induced emf, `e=-(d phi)/(dt) =-pi ^(2)B_(0)(T-2t)` Induced current , `i=e/R = (pi a^(2)B_(0))/(R) (2t-T)` Thermal power generated at this instant, `P=(pi^(2)a^(4)B_(0)^(2))/(R ) (2t-t)^(2)` During an elementary time interval dt, heat generated, `pdt = (pi^(2)a^(4)B_(0)^(2))/(R) (2t-T)^(2)*dt` Total heat generated from `t=0 to t=T`. `Q=int Pdt = (pi^(2)a^(4)B_(0)^(2))/(R) int_(0)^(T)(2t-T)^(2)dt` `=(pi^(2)a^(4)B_(0)^(2)T^(3))/(3R)` The current reverses its sign when its magnitude reduces to zero. Let this happen at instant `t=t_(0)`. Substituting t by `t_(0)` in equation (i). `(pia^(2)B_(0))/(R) (2t-t_(0)) =0` `t_(0)=T/2` `:.` Charge that flows from `t=0` to `t=T//2` `q=(pi a^(2)B_(0))/(R) int_(0)^(T//2) (2t-T)dt = (pi a^(2)B_(0)T^(2))/(4R)`.

Discussion

38.	Explain contact inhibition?
Answer» Uncontrolled cell division and prolifezation growth & multiplication is sign of cancer cells & cancer disease, cancerous cells are called malignant neoplasm, which develop on neighbouring cells (by taking nutritive elements from them) grow and multiply. At last these cancerous cell kill the neighbouring cell. These concerns cell when come in contact with normal cell, they inhibit the growth and dynamic of these cells. This property of cancer cells are called contact inhibition.

Discussion

39.	Write the effects of Acid Rain.
Answer» Effects of Acid Rain:– (i) Acid rain damages a number of heritage monuments due to deposition of acids eg. Statue of Liberty, Taj Mahal etc. (ii) Acid rain kills the useful soil microbial community thus disturbing terrestrial ecosystems. (iii) In the aquatic ecosystem acid rain below 5 pH causes death of planktons, molluses and fish, therefore it disturb the food chain.

39.

Write the effects of Acid Rain.

Answer»

Effects of Acid Rain:–

(i) Acid rain damages a number of heritage monuments due to deposition of acids eg. Statue of Liberty, Taj Mahal etc.

(ii) Acid rain kills the useful soil microbial community thus disturbing terrestrial ecosystems.

(iii) In the aquatic ecosystem acid rain below 5 pH causes death of planktons, molluses and fish, therefore it disturb the food chain.

Discussion

40.	The potential difference across a 2-H inductor as a function of time is shown in Fig. At time `t = 0`, current is zero. Area under `V_(L) - t` graph givesA. currentB. change in currentC. product of inductance and currentD. product of inductance and change in current
Answer» Correct Answer - D Since `V_(L)=(Ldi)/(dt)` `Ldi=V_(L)dt` Integrating `Lint di = int V_(L) dt` `L_(i_(f)-i_(i))= int_(0)^(t) V_(L)dt` = area under `V_(L)-t` graph.

Discussion

41.	The potential difference across a 2-H inductor as a function of time is shown in Fig. At time t = 0, current is zero. Current at t = 1 s isA. `1 A`B. `2 A`C. `4 A`D. `8 A`
Answer» Correct Answer - B From explantion on privious page `L(i_(f)-i_(i))`= are under `V_(L)-t` graph `2(i_(f)-0) = 1/2 xx 1 xx 8 = 4` `i_9f=2A`.

Discussion

42.	What is radio-active pollution? What are the sources of radio-active pollution?
Answer» Radioactive Pollution – Certain elements such as Radium, Thorium, Uranium emit protons (Alpha particles) electrons (Beta particles) and Gamma particles by disintrigration of atomic nuclei. This phenomenon is called radioactivity and these elements are known as radioactive. When the radioactive radiations contaminate to water, air, soil and food materials it is called radioactive pollution.

42.

What is radio-active pollution? What are the sources of radio-active pollution?

Answer»

Radioactive Pollution – Certain elements such as Radium, Thorium, Uranium emit protons (Alpha particles) electrons (Beta particles) and Gamma particles by disintrigration of atomic nuclei. This phenomenon is called radioactivity and these elements are known as radioactive.

When the radioactive radiations contaminate to water, air, soil and food materials it is called radioactive pollution.

Discussion

43.	What is Bt cotton?
Answer» Bt cotton – Bt is a type of toxin, which is obtained from Bacillus thuringiensis. It is called Bt in short form. Bt toxin gene has been cloned from the bacteria and expressed in plants to provide resistance from insects without the requirement of insecticide. Bt toxin genes were isolated from Bacillus thuringiensis and incorporated into the several crop plants such as cotton.

Discussion

44.	The potential difference across a 2-H inductor as a function of time is shown in Fig. At time t = 0, current is zero. The variation of current versus time isA. a straight lineB. a parabolaC. a hyperbolaD. expotential
Answer» Correct Answer - B For `t le 1s` `V_(L)=8t` `Ldi=V_(L)dt` `int Ldi = int 8t dt` `Li =(8t^(2))/(2) = 4t^(2)` `i=2t^(2)` so current versus time graph is a parabola For `1s le t le 2s` ltbtgt `V_(L) = 16 -8t` `int Ldi=int (16-8t)dt` `Li = 16t-(8t^(2))/(2)` `i=8t - 2t^(2)` so i-t graph in a parabola. so, for entire time shown, i-t graph in a parabola.

Discussion

45.	Correct order of indicated bond length is/are:A. `CH_(2)overset(a)=CH-O"Me" lt O_(2)N-CH_(2)overset(b)=CH-O"Me"`B. C. `CH_(3)CH_(2)ul(a)Cl lt CH_(2) =CH-CH_(2)ul(b)Cl`D. `CH_(3)-underset(O)underset(\|\|)Cul(a)OH lt CH_(3)-underset(O)underset(\|\|)Cul(b) O^(Ѳ)`
Answer» Correct Answer - A::B::C

Discussion

46.	What is significance of double fertilization?
Answer» Significance of double fertilization:– (i) Double fertilization is very important in angiospermic plants. If only syngamy occurs in plants and triple fusion does not occur, only 3 zygote will be formed. Endosperm will not be formed and this will result seed with undeveloped embryo or seed without embryo. (ii) Endosperm is formed due to double fertilization this provides nutrition to embryo and it contains maternal and paternal chromosome. A body shows physiological aggressiveness due to hybrid vigour in inner endospermic cells.

46.

What is significance of double fertilization?

Answer»

Significance of double fertilization:–

(i) Double fertilization is very important in angiospermic plants. If only syngamy occurs in plants and triple fusion does not occur, only 3 zygote will be formed. Endosperm will not be formed and this will result seed with undeveloped embryo or seed without embryo.

(ii) Endosperm is formed due to double fertilization this provides nutrition to embryo and it contains maternal and paternal chromosome. A body shows physiological aggressiveness due to hybrid vigour in inner endospermic cells.

Discussion

47.	Statement-1: A man is standing on a bathroom scale. Suddenly he squats (sits down) with accleration a The scale reading will increase. Statement-2: Man pushes down on the scale while squantting.A. Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.B. Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.C. Statement-1 is true, statement-2 is false.D. Statement -1 is false, statement -2 is true.
Answer» Correct Answer - D Since his acceleration is downward get will reduce and scale reading will decrease.

Discussion

48.	Which of the following is/are trueA. Multiplicity in `Fe^(3+)` is greater that that in `Co^(3+)`B. `Ti^(3+), Cr^(+), SC^(2+)` ions are diamagnetic .C. Value of `(n+l+m)` for last electron of Mg is 3.D. The value of `Z_("eff")` for 3s electron of Cl is 10.9
Answer» Correct Answer - A::C::D

Discussion

49.	What are the value of p,q,r, and s for the following reaction `" "pO_(3) + qHI to rI_(2) + sH_(2)O`A. 1,6,3,1B. 1,6,3,3C. 1,6,6,3D. 1,6,3,6
Answer» Correct Answer - B

Discussion

50.	Power due to a force actoing on a block varies with time `t` as shown in figure. Then angle between force acting on the block and its velocity is `:-` A. Obtuse at `t=1s`B. `90^(@)` at `t=3s`C. Acute at `t=7s`D. Both the stones reach the bottom at different times and with different speeds.
Answer» Correct Answer - D Power, `P=vec(F).vec(v)` so `P` positive `rArrthetalt90^(@)`, `P` negative `rArrthetagt90^(@)` and `P` zero `rArrtheta=90^(@)`

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

I was quite astonished ______ his quick reaction. A) with B) of C) at D) on

He suffers rather badly _____ migraines. A) of B) from C) for D) as

They are very similar. I often mistake one _____ the other. A) through B) of C) with D) for

She was absorbed ______ an exciting story. A) with B) in C) on D) of

he stories about his wealth are quite ________; he is not particularly well off. A) unprovoked B) incredulous C) unfounded D) irrational E) undeserving

He looked ashamed ______ his foolishness. A) at B) of C) about D) with

His opinions are directly contrary ______ yours. A) to B) with C) about D) on

The Minister accused the farmers of ________ the potato shortage in order to force prices up. A) depleting B) expecting C) exploiting D) misapplying E) misappropriating

They felt quite certain ______ their failure. A) of B) at C) about D) with

He was accused ______ theft by the police. A) on B) over C) from D) of

Having worked hard for three months, he succeeded ____ his exam. A) to pass B) in to pass C) in passing D) passing

We are very busy at the office. I must ____ my holiday for a while. A) put up B) put through C) put off D) put in

They accused him ___ a thief. A) for being B) as being C) of being D) to be

We ______ at noon to have lunch. A) broke up B) broke off C) came about D) went over

Why can mitochondria be considered the power plants of the aerobic cells?

50 ml rum is added to a cocktail containing whiskey and brandy in the ratio 3 ∶ 2. Now, 70 ml of mixture is taken out and 15 ml of rum is added. What is the percentage of whiskey in the final mixture, if the quantity of the cocktail was 300 ml?1. 52%2. 55%3. 35%4. 39%5. 49%

The place where rock musicians and orchestras play is called a ___.

A place which serves drinks such as beer and whiskey and where people go to relax and meet friends is called a

A gas is found to obey the law `P^(2)` V= constant the innitial temperature and volume are `T_(0)` and `V_(0)`. If the gas expands to volume `2V_(0)` , its final temperature becomes-A. `sqrt(2) T_(0)`B. `2T_(0)`C. `T_(0)//2`D. ` T_(0)//sqrt(2)`

In a series LR circuit, the voltage drop across inductor is 8 volt and across resistor is 6 volt. Then voltage applied and power factor of circuit respectively are:A. 14V,0.8B. 10V,0.8C. 10 V,0.6D. 14 V,0.6

In a particular R-L series circuit a voltage of 10V at 50 Hz produces a current of 700mA while the samevoltage at 75 Hz produces 500 mA. What are the values of circuit constants?

Bell metal contains 80% copper the mass of bell metal which contains 1.5*1020 atoms of copper is

She ______ to stay at home. A) uses B) prefers C) like D) rathers

Oligogenic resistance is also called ----------- a. Major gene resistance b. Minor gene resistance c. Both (a and b) d. None of all

He drinks ______ quickly. A) bear B) beer C) bare D) bar

What are the substances that constitute the chromatin? What is the difference between chromatin and chromosome?

The bacteria were discovered by- (a) Pasture (b) Koch (c) Leewenhoek (d) Robert Hook

What are plant cell vacuoles? What are their functions? What is the covering membrane of the vacuoles called?

What are the morphological, chemical and functional similarities and differences between lysosomes and peroxisomes?

Excessive use of opium caused- (a) Loss in weight of the body (b) Loss of Apetite (c) Infertility (d) All of the above

A particle of mass 0.2 kg moves along a path given by the relation : `vec(r)=2cos omegat hat(i)+3 sin omegat hat(j)`. Then he torque on the particle about the origin is :A. `sqrt(13) hat(k) Nm`B. `sqrt((2)/(3)) hat (k) Nm`C. `sqrt((3)/(2)) hat(k) Nm`D. `0 hat(k)`

Which one of the following equation is correct for the circuit shown. The currents in each branch of circuit are indicated and all three cells are ideal A. `2-I_(1)-2I_(2)=0`B. `2-2I_(0)-2I_(2)-4I_(3)=0`C. `4-I_(1)+4I_(3)=0`D. `-2-I_(1)-2I_(2)=0`

What is Tranquilizers? Explain it with examples.

Explain contact inhibition?

Write the effects of Acid Rain.

The potential difference across a 2-H inductor as a function of time is shown in Fig. At time `t = 0`, current is zero. Area under `V_(L) - t` graph givesA. currentB. change in currentC. product of inductance and currentD. product of inductance and change in current

The potential difference across a 2-H inductor as a function of time is shown in Fig. At time t = 0, current is zero. Current at t = 1 s isA. `1 A`B. `2 A`C. `4 A`D. `8 A`

What is radio-active pollution? What are the sources of radio-active pollution?

What is Bt cotton?

The potential difference across a 2-H inductor as a function of time is shown in Fig. At time t = 0, current is zero. The variation of current versus time isA. a straight lineB. a parabolaC. a hyperbolaD. expotential

Correct order of indicated bond length is/are:A. `CH_(2)overset(a)=CH-O"Me" lt O_(2)N-CH_(2)overset(b)=CH-O"Me"`B. C. `CH_(3)CH_(2)ul(a)Cl lt CH_(2) =CH-CH_(2)ul(b)Cl`D. `CH_(3)-underset(O)underset(||)Cul(a)OH lt CH_(3)-underset(O)underset(||)Cul(b) O^(Ѳ)`

What is significance of double fertilization?

Which of the following is/are trueA. Multiplicity in `Fe^(3+)` is greater that that in `Co^(3+)`B. `Ti^(3+), Cr^(+), SC^(2+)` ions are diamagnetic .C. Value of `(n+l+m)` for last electron of Mg is 3.D. The value of `Z_("eff")` for 3s electron of Cl is 10.9

What are the value of p,q,r, and s for the following reaction `" "pO_(3) + qHI to rI_(2) + sH_(2)O`A. 1,6,3,1B. 1,6,3,3C. 1,6,6,3D. 1,6,3,6

Power due to a force actoing on a block varies with time `t` as shown in figure. Then angle between force acting on the block and its velocity is `:-` A. Obtuse at `t=1s`B. `90^(@)` at `t=3s`C. Acute at `t=7s`D. Both the stones reach the bottom at different times and with different speeds.