InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The relation between internal energy `U`, pressure `P` and volume `V` of a gas in an adiabatic process is `U = a + bPV` where a and b are constants. What is the effective value of adiabatic constant `gamma` ?A. `a/b`B. `(b+1)/b`C. `(a+1)/a`D. `b/a` |
| Answer» Correct Answer - B | |
| 2. |
Three samples of the same gas A,B and C `(gamma=3//2)` have initially equal volume. Now the volume of each sample is doubled. The process is adiabatic for A. Isobaric for B and isothermal for C. If the final pressures are equal for all three samples, find the ratio of their initial pressuresA. `2:1:sqrt2`B. `2sqrt2:1:2`C. `sqrt2:1:2`D. `sqrt2:2:1` |
| Answer» Correct Answer - B | |
| 3. |
A force of `7hati + 6hatk` newton makes a body move on a rough plane with a velocity of `3 hatj +4 hatk ms^(-1)`. Calculate the power in watt.A. 24B. 34C. 21D. 45 |
| Answer» Correct Answer - A | |
| 4. |
A chain of uniform mass `m` and length `L` is held on a frictionless table in such a way that its `(1)/(n)`th part is hanging below the edge of table. The work done to pull the hanging part of chain is `:-`A. `sqrtn`B. `n`C. `n^(-3)`D. `n^(-2)` |
| Answer» Correct Answer - D | |
| 5. |
Match the following and select the correct combination from the given options `{:(,underset(underset("interaction)")(("Population")))("Column I"),,underset(("Examples"))("Column II")),("A.","Mutualism","(i)","Ticks on dogs"),("B.","Commensalism","(ii)","Balanus and Chthamalus"),("B.","Prasitism","(iii)","Sparrow and any seed"),("D.","Competition","(iv)","Epiphyte on a mango branch"),("E.","Predation","(v)","Mycorrhiza"):}`A. A-(i),B-(v),C-(iv),D-(iii),E-(ii)B. A-(ii),B-(i),C-(v),D-(iv),E-(iii)C. A-(iii),B-(ii),C-(i),D-(v),E-(iv)D. A-(v),B-(iv),C-(i),D-(ii),E-(iii) |
| Answer» Correct Answer - D | |
| 6. |
Match column I with column II and select the correct option from the given codes `{:(,"Column I",,"Column II"),("A.",underset("precupitator")("Electriostatic"),"(i)","Removes gases like "SO_(2)),("B.","Scrubber","(ii)","Reduces automobile emission"),("C.","Catalytic converter","(iii)","Removes oparticulate matter"):}`A. A-(ii),B-(iii),C-(i)B. A-(iii),B-(ii),C-(i)C. A-(i),B-(ii),C-(iii)D. A-(iii),B-(i),C-(ii) |
| Answer» Correct Answer - D | |
| 7. |
The given table shows ome information about the trophic levels of a food chain `{:("Trophic level"" "underset("trophic level")("Energy in the")" "underset("of organisms")("Number")),(" P 10,000 kJ 1000"),(" Q 200 kJ 10"),(" R 100,000 kJ 1"),(" S 2000 kJ 500"):}` Select the option with correct order of tropic levels in a food chainA. `Q rarr S rarr P rarr R`B. `S rarr Q rarr R rarr P`C. `P rarr R rarr Q rarr S`D. `R rarr P rarr S rarr Q` |
| Answer» Correct Answer - D | |
| 8. |
Which of the following contraceptive methods correctly matches with its mode of action ?A. `{:("Contraceptive method Mode of action"),(" Tubectomy Make the uterus unstable for implantation"):}`B. `{:("Contraceptive method Mode of action"),(" Oral pills Inhibit ovulation and implantation"):}`C. `{:("Contraceptive method Mode of action"),(" Diaphragms Spermicidal and increases phagocytosis of sperms within the uterus"):}`D. `{:("Contraceptive method Mode of action"),(" IUDs Blocks gamete transport"):}` |
| Answer» Correct Answer - B | |
| 9. |
Which of the following contraceptive methods correctly matches with its mode of action ?A. `{:("Contraceptive method Mode of action"),(" Tubectomy Make the uterus unstable for implantation"):}`B. `{:("Contraceptive method Mode of action"),(" Oral pills Inhibit ovulation and implantation"):}`C. `{:("Contraceptive method Mode of action"),(" Diaphragms Spermicidal and increases phagocytosis of sperms within the uterus"):}`D. `{:("Contraceptive method Mode of action"),(" IUDs Blocks gamete transport"):}` |
| Answer» Correct Answer - B | |
| 10. |
Which of the following is incorrectly matched ?A. Alpha - Number of species in a given habitatB. Genetic diversity - Variation of genes within speciesC. Beta-diversity - Diversity of habitat in the whole regionD. Species diversity - The product of species richness and evenness |
| Answer» Correct Answer - C | |
| 11. |
In which one of the following options the two examples are correctly matched with their particular type of immunity ?A. `{:(" Examples Type of immunity"),("Polymorphonuclear leucocytes and monocytes Cellular barriers"):}`B. `{:(" Examples Type of immunity"),("Anti-tetanus and anti-snake bite injections Active immunity"):}`C. `{:(" Examples Type of immunity"),("Saliva in mouth and tears in eye Physical barriers"):}`D. `{:(" Examples Type of immunity"),(underset(underset("The HCl in stomach")("urinoigential tract and"))("Muscus coating of epthelium lining the")" Physiological barriers"):}` |
| Answer» Correct Answer - A | |
| 12. |
The angle subtended by vector `vecA = 4 hati + 3hatj + 12hatk` with the x-axis is :A. `sin^(-1) (3/13)`B. `sin^(-1) (4/13)`C. `cos^(-1)(4/13)`D. `cos^(-1)(3/13)` |
| Answer» Correct Answer - C | |
| 13. |
The radii of the two columne is U-tube are `r_(1)` and `r_(2)(gtr_(1))`. When a liquid of density `rho` (angle of contact is `0^@))` is filled in it, the level different of liquid in two arms is h. The surface tension of liquid is `(g=` acceleration due to gravity)A. `(rhoghr_1r_2)/(2(r_2-r_1))`B. `(rhogh(r_2-r_1))/(2r_1r_2)`C. `(2(r_2-r_1))/(rhoghr_1r_2)`D. `(rhogh)/(2(r_2-r_1))` |
| Answer» Correct Answer - A | |
| 14. |
One mole of an ideal monoatomic gas at temperature `T_0` expands slowly according to the law `p/V` = constant. If the final temperature is `2T_0`, heat supplied to the gas isA. `2RT_0`B. `RT_0`C. `3/2 RT_0`D. `1/2 RT_0` |
| Answer» Correct Answer - A | |
| 15. |
A vehicle of mass `M` is moving on a rough horizontal road with a momentum P If the coefficient of friction between the tyres and the road is `mu` is then the stopping distance is .A. `p/(2mu mg)`B. `(p^2)/(2mu mg)`C. `p/(2mu m^2 g)`D. `p^2/(2mu m^2 g)` |
| Answer» Correct Answer - C | |
| 16. |
A block of mass m=2kg is resting on a rough inclined plane of inclination plane of inclination `30^(@)` as shown in figure. The coefficient of friction between the block and the plane is `mu=0.5`. What minimum force F should be applied perpendicular to the plane on the block, so that blocks does not slip on the plane? `(g=10m//s^(2))` A. 2.68 NB. zeroC. 4.34 ND. 6.24 N |
| Answer» Correct Answer - A | |
| 17. |
A ball is dropped on to a horizontal plate from a height h = 9 m above it. If the coefficient of restitution is e=1/2, the total distance travelled before the ball comes to rest isA. 10 mB. 15 mC. 20 mD. 25 m |
| Answer» Correct Answer - B | |
| 18. |
A massless platform is kept on a light elastic spring as shown in figure. When a small stone of mass 0.1 kg is dropped on the pan from a height of 0.24 m, the spring compresses by 0.01m. From what height should the stone be droppped to cause a compression of 0.04m in the spring ? A. 0.96 mB. 2.96 mC. 3.96 mD. 0.48 m |
| Answer» Correct Answer - C | |
| 19. |
Organism X infects all broad-leaved agricultural crops, For genetic engineering, its tumor forming genes are deleted. Here, X isA. Bacillus thuringiensisB. Agrobacterium tumefacinesC. Meloidogyne incognitaD. Bacillus amyloliquefaciens |
| Answer» Correct Answer - B | |
| 20. |
Which of the following ways is most likely to decrease the genetic diversity in a population ?A. Gene mutationB. Genetic recombinationC. Stabilising natural selectionD. Immigration of individuals |
| Answer» Correct Answer - C | |
| 21. |
A person suffering from a disease caused by Plasmodium, experiences recurring chill and fever at the time whenA. the sporozoites released from RBCs are being rapidly killed and broken down inside spleenB. the trophozoites reach maximum growth and give out certain toxinsC. the parasite after its rapid multiplication inside RBCs ruptures them, releasing the stage to enter fresh RBCsD. the microgametocytes and megagametocyte are being destroyed by the WBCs |
| Answer» Correct Answer - C | |
| 22. |
Which one of the following correctly describes the homologous structures ?A. Organs with anatomical similarities, but performing different functionsB. Organs with anatomical dissimilarties but performing same functionC. Organs that have no function now, but had an important function in ancestorsD. Organs appearing only in embryonic stages and disappearing later in the adult |
| Answer» Correct Answer - A | |
| 23. |
A sound source is moving towards a stationary observer with 1/10 of the speed of sound. The ratio of apparent to real frequency isA. `10/9`B. `(10/9)^2`C. `(11/10)^2`D. `11/10` |
| Answer» Correct Answer - A | |
| 24. |
The detritus food chain begins with:A. primary producersB. primary consumersC. secondary consumersD. dead organic matter |
| Answer» Correct Answer - D | |
| 25. |
A car is initially at rest, 330 m away from a stationary observer. It begins to move towards the observer with an acceleration of `1.1 m s^(-2)` sounding its horn continuously. 20 s later, the driver stops sounding the horn. The velocity of sound in air is `330 m s^(-1)`. The observer will hear the sound of the horn for a duration ofA. 20 sB. 21 sC. `20 2/3 s`D. `19 1/3 s` |
| Answer» Correct Answer - D | |
| 26. |
Two bodies of masses `10 kg and 2 kg` are moving with velocities `(2 hati - 7 hatj + 3hat k) and (-10 hati + 35 hatj - 3hatk) m//s` respectively. Calculate the velocity of their centre of mass.A. `2hati m s^(-1)`B. `2 hatk m s^(-1)`C. `(2hatj+2hatk) m s^(-1)`D. `(2hati+2hatj+2hatk) m s^(-1)` |
| Answer» Correct Answer - B | |
| 27. |
A gas under constant pressure of `4.5 xx 10^(5) Pa` when subjected to `800 kJ` of heat, changes the volume from `0.5 m^(3) to 2.0 m^(3)`. The change in internal energy of the gas isA. `6.75xx10^5 J`B. `5.25xx10^5 J`C. `3.25xx10^5 J`D. `1.25xx10^5 J` |
| Answer» Correct Answer - D | |
| 28. |
A system of springs with their spring constants are as shown in figure. What is the frequency of oscillations of the mass m ? A. `1/(2pi)sqrt((k_1k_2(k_3+k_4))/([(k_1+k_2)+(k_3+k_4)+k_1k_4]m))`B. `1/(2pi)sqrt((k_1k_2(k_3+k_4))/([(k_1+k_2)+(k_3+k_4)+k_1k_2]m))`C. `1/(2pi)sqrt((k_1k_2(k_3+k_4))/([(k_1+k_2)+(k_3+k_4)+k_1k_2]m))`D. `1/(2pi)sqrt(((k_1+k_2)(k_3+k_4)+k_1k_2)/(k_1 k_2(k_3+k_4)m)` |
| Answer» Correct Answer - C | |
| 29. |
What is the wavelength of wave shown in given figure ? A. 0.6 mB. 0.3 mC. 0.08 mD. 4 cm |
| Answer» Correct Answer - C | |
| 30. |
A particle of mass 0.1 kg is held between two rigid supports by two springs of force constant `8 N m^(-1) and 2 N m^(-1)`. If the particle is displaced along the direction of length of the springs, its frequency of vibration isA. `5/pi`HzB. `8/pi` HzC. `2/pi`HzD. `1/pi` Hz |
| Answer» Correct Answer - A | |
| 31. |
Two thin discs each of mass M and radius r metre are attached to form a rigid body as shown in figure. The rotational inertia of this body about an axis perpendicular to the plane of disc B and passing through its centre is A. `2Mr^2`B. `3Mr^2`C. `4Mr^2`D. `5Mr^2` |
| Answer» Correct Answer - D | |
| 32. |
If the vectors `vecA=2hati+4hatj and vecB=5hati-phatj` are parallel to each other, the magnitude of `vecB` isA. `5sqrt5`B. `10`C. 15D. `2sqrt5` |
| Answer» Correct Answer - A | |
| 33. |
A system of identical cylinders and plates is shown in Fig. All the cylinders are identical and there is no slipping at any contact. The velocity of lower and upper plates are `V` and `2V`, respectively, as shown in Fig. Then the ratio of angular speeds of the upper cylinders to lower cylinders is A. `1:3`B. ` 3:1`C. `1:2`D. ` 2:1` |
| Answer» Correct Answer - B | |
| 34. |
The force on a particle of mass `10g` is `(hati 10+hatj 5)`N If it starts from rest what would be its position at time `t=5s` ?A. `12500 hati+6250 hatj m`B. `6250 hati+12500 hatj m`C. `12500 hati+12500 hatj m`D. `6250 hati+6250 hatj m` |
| Answer» Correct Answer - A | |
| 35. |
A mass M of 100 kg is suspended with the use of strings A, B 90 and C as shown in the figure, where W is the vertical wall and R is a rigid horizontal rod. The tension in the string B is A. 100g NB. zeroC. `100sqrt2g N`D. `100/sqrt2 g N` |
|
Answer» Correct Answer - A As all the three strings are different, We have, Tension on B is only due to the Mass I.e, T=mg= 100×g = 100gN |
|
| 36. |
The velocity of a body moving in a vertical circle of radius r is `sqrt(7gr)` at the lowest point of the circle. What is the ratio of maximum and minimum radius r is tension?A. `4:1`B. `sqrt7:1`C. `3:1`D. `2:1` |
| Answer» Correct Answer - A | |
| 37. |
A uniform wire of length 20 m and weighing 5 kg hangs vertically. If `g=10 m s^(-2)`, then the speed of transverse waves in the middle of the wire isA. `10 m s^(-1)`B. `10sqrt2 m s^(-1)`C. `4 m s^(-1)`D. `2 m s^(-1)` |
| Answer» Correct Answer - A | |
| 38. |
A transverse wave is travelling along a string from left to right. The figure below represents the shape of the string at a given instant. At this instant, among the following, choose the wrong statement. A. Points D, E, F have upward positive velocity.B. Points A, B and H have downward negative velocityC. Point C and G have zero velocity.D. Points A and E have minimum velocity. |
| Answer» Correct Answer - D | |
| 39. |
A force `F` is given by `F = at + bt^(2)` , where `t` is time . What are the dimensions of `a and b`?A. `[MLT^(-3)] and [MLT^(-4)]`B. `[MLT^(-4)] and [MLT^(-3)]`C. `[MLT^(-1)] and [MLT^(-2)]`D. `[MLT^(-2)] and [MLT^(0)]` |
| Answer» Correct Answer - A | |
| 40. |
Three stars `A, B, C` have surface temperatures `T_(A), T_(B)` and `T_(C)`. A appaears bluish, B appears reddish and C appears yellowish. We can conclude thatA. `T_A gt T_C gt T_B`B. `T_A gt T_Bgt T_C`C. `T_B gt T_C gt T_A`D. `T_C gt T_B gt T_A` |
| Answer» Correct Answer - A | |
| 41. |
A body of mass m accelerates uniformly from rest to `v_1` in time `v_2`. As a function of time t, the instantaneous power delivered to the body isA. `(mv_1t)/t_1`B. `(mv_1^2t)/t_1`C. `(mv_1t^2)/t_1`D. `(mv_1^2 t)/(t_1^2)` |
| Answer» Correct Answer - D | |
| 42. |
Two men with weights in the ratio 4:3 run up a staircase in time in the ratio 12:11. The ratio of power of the first to that of second isA. `4/3`B. `12/11`C. `48/33`D. `11/9` |
| Answer» Correct Answer - D | |
| 43. |
Sickle-cell anaemia isA. autosomal dominant inheritanceB. X-linked recessive inheritanceC. autosomal recessive inheritanceD. X-linked dominant inheritance |
| Answer» Correct Answer - C | |
| 44. |
If percentage of cytosine is 18 %, then percentage of thymine will beA. `32 %`B. `64 %`C. `36 %`D. `23 %` |
| Answer» Correct Answer - A | |
| 45. |
In microbial genetics which one is reffered to as 'Griffith effect'?A. ConjugationB. transductionC. TransformationD. Sex-duction |
| Answer» Correct Answer - C | |
| 46. |
A spherical metal ball of mass `m` and radius `(r )` is falling through a viscous medium. The value of its terminal velocity is proportional toA. 1/r onlyB. m/rC. `(m//r)^(1//2)`D. m only |
| Answer» Correct Answer - B | |
| 47. |
Human chorionic gonadotropin is secreted byA. chorionB. amnionC. corpus luteumD. placenta |
| Answer» Correct Answer - D | |
| 48. |
Penicillium does not allow the growth of Staphylococus bacterium and Trichoderma stops the growth of fungus Aspergilus. This type of biotic interaction is calledA. parasitismB. amensalismC. commensalismD. competition |
| Answer» Correct Answer - B | |
| 49. |
Sacred groves are specially useful inA. generating environmental awarenessB. preventing soil erosionC. year-round flow of water in riversD. conserving rate and threatened species |
| Answer» Correct Answer - D | |
| 50. |
The second overtone of an open organ pipe has the same frequency as the first overtone of a closed pipe `L` metre long. The length of the open pipe will beA. 8 mB. 4 mC. 2 mD. 1 m |
| Answer» Correct Answer - B | |