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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 3851. |
Bryophytes are -(1) Sciophytes(2) Cryophyte(3) Halophytes(4) XerophytesCiO |
| Answer» <p>bryophytes are xerophytic</p> | |
| 3852. |
Plants of desert are also called:a. Xerophytesc. Terrestrialb. Hydrophytesd. of these |
| Answer» <p>Plants of dessert are also called Xerophytes. </p><p>If you find this answer helpful then like it.</p> <p> yntbttb</p> | |
| 3853. |
I Fill in the blanks and give reasons :are the respiratory organs of fish. (TQis found (T.Qare found on leaves for the exchange of gases (T.QIn a cockroach, a network of4. The process of breathing in air is called.5 The number of times we breathe in and breathe out air in a minute is called the ..6. Fish are kept in houses in..110 |
| Answer» <p>1 gills3 stomata4 respiration 6 aquarium </p> <p>1. Gills3.Stomata4. Respiration5. Breathing rate6. Aquarium</p> | |
| 3854. |
96. Given that force [F] is given as F = Pt^-1Qt.Here t is time. The unit of P is same as thatof(a) displacement (b) velocity(c) acceleration (d) momentum |
| Answer» <p>The unit of P is same as that of momentum</p> | |
| 3855. |
ime's upcutting a betel nut once,then tell how many pleceswill be on the cutting of thebetel nut thrice?एक सुपारी को एक बार काटनेपर दो टुकड़े होते हैं, तो बताओसुपारी को तीन बार काटने परकितने टुकड़े होंगे।(A) ६ (B) 4[C]][D]5SubscribeUpdatesfor |
| Answer» <p>6 is the correct answer </p> <p> 6 is correct. </p> <p>We get 6 pieces, because 1 betel nut cut 1 time get 2 pieces the cut 3 times we got 6 pieces</p> <p>it's 4 because when we cut 1st time we got 2 pieces and when we cut 2nd time we got 3 pieces not 4 and finally when we cut it 3rd time we got 4 pieces not 6 (4 is the correct answer) you can do it practicaly.</p> <p>6 is the answer because </p> <p>your answer is six to cut Supari in three times</p> | |
| 3856. |
ention the advantages of selecting pea plant for experiment by Mendel |
| Answer» <p>great peassion of Jim and Della </p> | |
| 3857. |
A plant which is parasiticand yellow, tubular and slender. |
| Answer» <p>Cuscuta</p> | |
| 3858. |
4) Which of the following is NOT takenby a green plant?A) AirBWaterC)D)FoodSunlight |
| Answer» <p>The right answer is c food... </p> <p>(c) Food, is the right answer</p> <p>d)sunlight as............</p> <p>food is correct answer</p> <p>Food is not taken by green plant because they prepare there own food.</p> <p>food is the correct answer of the given question</p> <p>C) food. is the correct answer </p> <p>c) food is not taken by a green plant</p> <p> c is the answer of the following</p> <p>Food is not taken by plants because they prepare their food by themselves with raw materials such as water, sunlight, carbon dioxide etc.., by the process of photosynthesis. </p> | |
| 3859. |
5. Two moles of an ideal gas are expanded isothermallfrom a volume of 15.5L to the volume of 20against a constant external pressure of I atm. Estmate the amount of work in L atm and J |
| Answer» <p>thanks very much</p> | |
| 3860. |
1.What are variations? How do they help organisms?(ASI) |
| Answer» <p>Variation, in biology, any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences (genotypic variation) or by the effect of environmental factors on the expression of the genetic potentials (phenotypic variation).</p> | |
| 3861. |
7.Explain the Darwin's theory of evolution 'Natural selection' with an example(ASI |
| Answer» <p>Darwin's Theoryof Evolution byNatural Selection. More individuals are produced each generation that can survive. Phenotypic variation exists among individuals and the variation is heritable. Those individuals with heritable traits better suited to the environment will survive.</p> <p>1)Darwin theory of natural selection is based on the concept of survival of the fittest 2) organisms can prolifically 3)under limited resources organism complete with each other in a life treatening manner for their survival 4) according to this theory only those organisms survive which show modifications for winning the competition the selected organism then give rise to new species with their specific set of characters</p> | |
| 3862. |
The imaginary line dividing the earthinto two hemisphere |
| Answer» <p>the equator or line of 0 degrees latitude divides the earth into the northern and southern hemispheres.</p> | |
| 3863. |
.Show variation of resistivity of Si with temperature in graph |
| Answer» | |
| 3864. |
under normal condition 100ml blood carry |
| Answer» <p>In anormalperson, the hemoglobin level is about 15 g per100 ml. The capacity A 1 gm of hemoglobin to combine with 02 is 1.34 mi. Therefore Arterialblood carriesabout 20mlof O2/100 mlofblood.Under normal condition, the O2 level falls to about 14.4 m1/100 mlin the venules</p> | |
| 3865. |
b. Avoiding smoking and alcoholism |
| Answer» <p>Notin down the ill -effects of smoking and drinking, avoiding triggers which leads to such issues, settingraduallyg goals of quitting it gradually, Preparing self for change by getting rid of addictive substances from house and avoid the places where people drink or smoke are some of the ways to prevent smoking and drinking</p> <p>Notin down the ill -effects of smoking and drinking, avoiding triggers which leads to such issues, settingraduallyg goals of quitting it gradually, Preparing self for change by getting rid of addictive substances from house and avoid the places where people drink or smoke are some of the ways to prevent smoking and drinking</p> | |
| 3866. |
wordsancity the Correlati t tusoAuas eat the %uitable words in the fourth placeFrag Amphibia: Turtle.om betweem +he irsaceoce trame or toke with |
| Answer» <p>Turtle is a reptile.</p><p>So Frog : Amphibia :: Turtle : Reptile </p><p>Like my answer if you find it useful!</p> | |
| 3867. |
What is the use of Logo language? |
| Answer» <p>LOGO is a computer programming language used for functional programming, and is used forgeneratingbasic shapes using a turtle cursor.</p> | |
| 3868. |
25*x - 40 |
| Answer» <p>x*25-40=025x-46=025x=46x=46/25.</p> <p>xX25=40; 25X=40; X=40/25=8/5</p> <p>8/5 is the correct answer. </p> <p>8/5 is the correct answer of the given question</p> <p>8/5 is the correct answer </p> | |
| 3869. |
10. The velocity of A is0smooth(a) u sin θ(c) u tan θ(b) usec θ(d) 11 cot θ |
| Answer» <p>let the Velocity of a along the line be V </p><p>=> component of v along rope = vcos∅ = u => v = u/cos∅ =usec∅</p><p>option b</p> | |
| 3870. |
What is evaporation? |
| Answer» <p>Evaporationis the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature. It is part of water cycle and is constantly occurring throughout nature.</p> <p>when we Boling water is contain water vapour is called evaporation</p> | |
| 3871. |
What type of elements do form ionic bonds and why? |
| Answer» <p>Ionic bonds form when a nonmetal and ametalexchange electrons, while covalent bonds form when electrons are shared between twononmetals. An ionic bond is a type ofchemicalbond formed through an electrostatic attraction between two oppositely charged ions.</p> | |
| 3872. |
Mr. Smith had cold and throat infection. Doctor prescribed an antibiotisoans c13o(a)(b)(c)which pathogens could have caused the infection?What is the mode of action of antibiotics?Mr.Smith recovered from cold but he still had throat infection. Would thethe antibiotics further? State Yes or No Giving reason.doctor continue |
| Answer» <p>The pathogen that might be the cause of the throat infection is bacteria.</p><p>The antibodies locate the pathogen that is bacteria in this case and can get help by the white blood cell to kill the pathogen or kill by itself .</p><p>Yes, because the infection is caused by bacteria that is not killed yet and for cure from the infection you need to take the antibodies.</p><p>Like my answer if you find it useful!</p> | |
| 3873. |
A light ray is incident on a plane mirror, whichafter getting reflected strikes another planemirror, as shown in figure. The angle betweenthe two mirrors is 60°. Find the angle '0' shownin figure.Q6.60° |
| Answer» <p>The angle opposite to the mirror will also be 60' because there is so much refraction taking place opposite of the two plane mirrors so the angle after striking the mirror will be equal</p> | |
| 3874. |
Application of Evaporation |
| Answer» <p>thanks !!</p> | |
| 3875. |
explains the importance of the element carbon and its presencein nature. |
| Answer» <p>compound found mainly in living things is known as an organic compound. Organic compounds make up the cells and other structures of organisms and carry out life processes.Carbonis the mainelementin organic compounds, socarbonis essential to life on Earth.</p> | |
| 3876. |
Calculate the rms speed of Bra molecules at 23°C and 1.00 atm. What is1.50 atm?Q4.the rms speed of Br2 at 23°C and |
| Answer» <p>V(rms) = SQRT (3RT/M)</p><p>T = 25 C = 298 KM = 0.1598 kg/molR = 8.314 J/(mol⋅K)</p><p>V(rms) = SQRT(3*8.314*298/0.1598) = 216 m/s</p> | |
| 3877. |
n a t temperature does the 77ns speed2 mesQ3.Calculate the rms speed of 02 molecules in a cylinder at 21°C and 1Mhot irthr rms speed of Br2 at |
| Answer» | |
| 3878. |
C. Write True (T) or False (F) against the following statements:ien we walk on the ground, friction acts along the direction of motion.2. Air offers no friction.3. Rolling friction is greater than sliding friction.4. Wheel is made circular to minimise friction.5. When one body is lyitim48 |
| Answer» <p>1. false ...it directs against the motion.2. false ... it acts as air resistance 3. false....As the area of contact is less in the case of rolling than in the case of sliding, rolling friction is less than the sliding friction.</p><p>4. true ...5. false... friction,</p><p>resistance offered to the movement of one body past another body with which it is in contact.</p> | |
| 3879. |
Wha is concave mi9o |
| Answer» <p>concave mirror is a mirror with a curved reflecting surface which is bulging inwards or curved inwards. It is also known as a converging mirror as this reflecting surface collects light incident on its surface, and reflects the parallel rays of light towards a common focus</p> | |
| 3880. |
1. State any two condition.essential for good health. |
| Answer» | |
| 3881. |
In the following figure of A ABC, ZABC = 70° and ZAving figure of A ABC, LABC = 70° and ZACB = 60°. Find 2 ABD and ZACE |
| Answer» <p>Angle ABD:110Angle ACE:120</p> <p>Since straight line=180°So,angle abd=angle dbc-angle abc=180°-70°=110°Angle ace=angle bce-angle acb=180°-60°=120°</p> <p>angle and:110angle abe:120</p> <p>the right answer is ABC=110°ACE=120°</p> | |
| 3882. |
Pertaining to endocrine system, what will you interpret if -a) You observe swollen neck in people living in the hills.b) Over secretion of growth hormone takes place during childhood.c) Facial hair develops in boys aged 13.5. |
| Answer» <p>(1)Swollen neck or Goiter is a common condition in which your thyroid gland is swollen. Thyroid gland is a butterfly shaped gland found in neck. </p><p>There are multiple reasons behind it:</p><p>- Iron deficiency: People who are iron deficient can develop it</p><p>- Thyroiditis: It is an inflammation of thyroid glands.</p><p>- Grave’s disease: An autoimmune disease causing the thyroid to be overactive</p><p>- Goitrogens: External factors such as drugs, certain foods which would lead to goiter formation.</p><p>(2)Over production of growth hormone in children causes excessive growth, a condition called Gigantism. It mainly occurs due to the non-cancerous pituitary tumor.</p><p>(3)Testosterone is a vital hormone in males which leads to the development and maintenance of male reproductive parts. Growth of facial hair develops in boys aged 13 justifies that their body starts producing testosterone, which also justifies the arrival of puberty</p> | |
| 3883. |
s4 AA SC, the vspcur pressure of pure benzene is 753 mm Hg and of pure toluene 290 mm HgCaicuiate the composition of a liquid in male per cent which at 80°C is in equilibrium with the vapoucontaining 30 mole per cent of benzene |
| Answer» | |
| 3884. |
a ray of light is incident on a plane mirror and the angle of reflection is 50°. calculate the angle between incident and reflected ray |
| Answer» <p>angle of reflection is equal to angle of incidence .So angle of reflection and angle of incidence are 50°and50° so angle between them is 50+50=100°</p> <p>Correct answer is 100</p> <p>💯 is the best answer</p> <p>We know that,Angle of incidence =angle of reflectionAngle of incidence =50Angle between incident and reflected ray=angle of incidence +angle of reflection</p><p>=50+50=100 degrees</p><p>Mark it as the bestPlzzz.......... </p> <p>∆of reflection is equal to ∆ incidence.so ∆ of reflection and ∆ of incidence are 50 degree and 50 degree so ∆btwn them is 50 +50=💯</p> <p>100is the right answer</p> <p>angle between incident and reflection = 100°</p> <p>because angle of reflection and angle of insident are equal..so angle between insident and reflect ray are 100 degree</p> <p>angle of incidence is equals to angle of reflection hence,50+50=100degree</p> <p>As you know the angle of reflection and angle of incidence are equal to each other. I.e, angle of incidence = angle of r</p> <p>we know thatangle of incidence is equal to angle of reflectionTherefor 50°+50° = 100°</p> <p>Angle b/w incident and reflected ray is 100°</p> <p>100 degree is correct and best answer 👍 👍👍 👍👍 👍👍 👍👍 👍</p> <p>💯 degree 👍👍👍👍👍👍👍👍😀👍</p> <p>100 degree is correct and best answer</p> <p>As we know that angle of incidence and the angle of reflection is always equallso,the angle between incident and reflected ray is 100 degree</p> <p>when a Ray of light is incident on a plane mirror and the angle of reflection is 50 degrees then the angle between incident and reflected ray is nothing but 50 + 50 degrees that is 100</p> <p>💯 is the answer ,👍👍👍👍👍👍👍</p> <p> angle of reflection is equal to angle of incidence so angle of reflection and angle of incidence are 50 degree and 50 degree angle between them is 50 + 50 =100 degree hope it help u</p> <p>100 degrees is absolutely correct answer</p> <p>Angleof incidence =Angle of reflection. Hence we get theanglebetween incidence andreflected rayas 100°. ... Theincident ray,reflected rayand normal all lies on sameplane</p> <p>angel of reflection is equal to angle of incidence . so angle of reflection and angle of incidence are 50°and 50° so angle between them is 50 +50=100°</p> | |
| 3885. |
Write the structure of the major produeach of the following reaction.Acetone |
| Answer» <p>answer is CH3-CH2-CH2-I </p><p>This operates by theSN2mechanism. The iodide ion is a reasonably good nucleophile, and adds asI−</p><p>Explanation:</p><p>R−Cl + Na+I−→R−I +NaCl↓</p><p>Because sodium iodide is much more soluble than sodium chloride in acetone, when you do this you see a glassy precipitate of sodium chloride in the acetone. I think there is a named organic spot test for this reaction (its name escapes me at the moment, I should not have finished that bottle of wine last night!). If you have time in an organic laboratory it would be worth your while to do this reaction in a small test tube so you can notice the turbidity of the sodium chloride when it precipitates</p> | |
| 3886. |
3. A beam of light incident on a plane mirror forms a real image on reflection. Theincident beam is :(a) parallel(b) convergentc) divergent(d) not certain |
| Answer» <p>Areal imageoccurs where rays converge, whereas avirtual imageoccurs where rays only appear to converge.Real images canbe produced by concavemirrorsand converging lenses, only if the object is placed further away from themirror/lens than the focal point and thisreal imageis inverted.</p> | |
| 3887. |
Q. 16. A motorcyclist drives from A to B with auniform speed of 30 km/h and returns with a speedof 20 km/h. Find his average speed |
| Answer» | |
| 3888. |
1. If 1 kg of water is mixed with 2 kg of liquid ofdensity 3 g/cm^3, then the average density of mixturewill be |
| Answer» <p>average density will be p=M1+M2../M1/p1+M2/p2..=1+2/1/3+2/3=3/3/3=3g/cm^3</p> | |
| 3889. |
list 10 coastal cities that has recently affected by a cyclone |
| Answer» <p>ChennaiMumbaiOrissaGujarat</p> <p>skx. more</p> | |
| 3890. |
How much the hydrostatic pressure exerted bywater at the bottom of a beaker? Take the depthof water as 45 cm. (density of water 10 kg/m')Note: Pressure exerted by a standing liquid dueto its weight is called hydrostatic pressure.15. |
| Answer» <p>Pressure = h* row*gh= 0.45m= 0.45*1000*9.8=4410 Pa</p> | |
| 3891. |
cities that are recently affected by a cyclone |
| Answer» <p>On December 2, the cyclone hit the Lakshadweep islands.</p> <p>5 cities affected by a cyclone </p> | |
| 3892. |
1 कि) 910: के 903 ® Wit |
| Answer» <p>please like the solution 👍 ✔️👍</p> | |
| 3893. |
The power of a motor pump is 2Kw.How much water per minute canthe pump raise to aheight of 20 mtrs. (given g 10 m/s2)(5y |
| Answer» | |
| 3894. |
staircase contains three steps each 10 cm h0 cm wide (figure 3-E9). What should be the morizontal velocity of a ball rolling off the upso as to hit directly the lowest plane?lane |
| Answer» | |
| 3895. |
A hockey field is 91 metres 40 cm long and 55 metres wide.How long is the boundary of the field?3. |
| Answer» | |
| 3896. |
2.Which fuel is used in thermal powerplant? What are the problems asso-ciated with this type of power gener-ation? |
| Answer» <p>The main fuel sources are used in a thermal power plants are coal, oil,natural gas,nuclear, and solar. Power Plants makes use offossil fuels, LNG ( liquefiednatural gas), coal and crude oil for thermal power generation.</p> | |
| 3897. |
Advantages of nuclear energy / power plants: |
| Answer» | |
| 3898. |
4.Write some ways to save fuel. |
| Answer» <p>Ways to Save Fuel-</p><p>Avoid Long Idling. Get a Fleet Fuel Card. Clean Out the Truck and Eliminate Unnecessary Weight. Keep Tires Inflated to the Correct Pressure. Use Cruise Control During Highway Driving. Don't Buy Premium Fuel. Drive the Posted Speed Limit. Monitor Preventive Maintenance Schedules.</p> | |
| 3899. |
. The lightest and m ost volatile liquid fuel isaGasolinec) Fuel oilb) Kerosened) of these |
| Answer» <p>it's gasoline which is most volatile.and its the lightest liquid.</p> | |
| 3900. |
Explain biological magnification with the helps of an example.What is ozone? How does it protect the organisms on the earth? |
| Answer» <p>The ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (UVR) from the sun, protecting life on Earth from its potentially harmful effects. </p><p>When the sky is clear, there is an inverse relationship between stratospheric ozone and solar UVR measured at the Earth’s surface. That is,the lower the ozone levels, the higher the solar UVR.</p><p>The level of UVR from the sun measured at the Earth’s surface varies linearly with latitude. There are higher UVR levels nearer the equator and lower UVR nearer the poles.</p> | |