General Physics MCQ Solved Paper for SBI Clerk

1. If a man wants to hear clearly the echo of a sound produced by him from a hill, the hill should be away from him by a minimum distance of
A. 330 m
B. 33 m
C. 16.5 m
D. 165 m
Answer : C

2. Which of the following is wrongly matched?
A. electric current - ampere
B. resistance - Ohm
C. electric power - volt
D. electric charge Coulomb
Answer : C

3. To produce beats it is necessary to have two waves
A. travelling in opposite direction
B. of slightly different frequencies
C. of equal wavelength
D. of equal amplitude
Answer : B

4. Less dew is formed on cloudy nights because
A. there is no moisture in the atmosphere
B. clouds absorb the falling dew
C. objects emit radiant energy very fast on such nights
D. objects lose less radiant energy
Answer : D

5. When light travels from one medium to another there is a change in its
A. velocity
B. wavelength
C. frequency
D. Both (a) and (b) above
Answer : D

6. The difference between planets and stars is
A. planets do not have light of their own whereas stars shine by their own light
B. planets do not twinkle like stars
C. planets are much smaller than stars
D. All the above
Answer : D

7. When a bottle of perfume is opened in one corner of a room the smell spreads soon throughout the room. This is an example of
A. surface tension
B. capillarity
C. viscosity
D. diffusion
Answer : D

8. X-rays were discovered by
A. Wilhelm Roentgen
B. WO Coolidge
C. Henry Cavendish
D. William Watson
Answer : A

9. When temperature decreases, resistance of metals to flow of electricity
A. increases
B. decreases
C. neither increases nor decreases
D. first increases then decreases
Answer : B

10. A lactometer is used to
A. find out the specific gravity of liquids
B. measure the volumes of liquids
C. test the purity of milk
D. determine the strength of acid in car batteries
Answer : C

11. The colour or an opaque object is due to the colour it
A. absorbs
B. refracts
C. reflects
D. scatters
Answer : C

12. On the Kelvin scale, the melting point of ice is
A. 0 K
B. 273 K
C. 373 K
D. 100 K
Answer : B

13. Which part of the eye photographic camera?
A. Lens
B. Iris
C. Retina
D. Eyelid
Answer : D

14. A wire conveying a current deflects a pivoted magnetic needle. This was discovered by
A. Marconi
B. Oersted
C. Faraday
D. Ohm
Answer : B

15. A wire conveying a current deflects a pivoted magnetic needle. This was discovered by
A. Marconi
B. Oersted
C. Faraday
D. Ohm
Answer : B

16. In the nucleus of an atom, the uncharged particle is
A. proton
B. neutron
C. electron
D. positron
Answer : B

17. When light travels from one medium to another there is a change in its
A. velocity
B. wavelength
C. frequency
D. Both (a) and (b) above
Answer : D

18. The stars that shine brightly then dimly and then brightly are known as
A. meteors
B. binaries
C. variable stars
D. bright stars
Answer : C

19. The filament used in the electric lamp is made of
A. nichrome
B. tungsten
C. copper
D. aluminium
Answer : B

20. The theory that the earth constituted the centre of the universe around which the sun and the planets revolved was propounded by
A. Copernicus
B. Ptolemy
C. Newton
D. Kepler
Answer : B

21. The aneroid barometer uses
A. mercury
B. distilled water
C. alcohol
D. does not use any liquid
Answer : D

22. The tiniest of the stars belong to the group known as
A. Giant stars
B. White Dwarf stars
C. Neutron stars
D. Super-giant stars
Answer : C

23. Which of the following rays has the highest penetrative power?
A. �± -rays
B. �² -rays
C. �³ -rays
D. X-rays
Answer : C

24. You want a supply of a small but constant current. Which of the following cells will you prefer?
A. Daniell cell
B. Leclanche cell
C. Dry cell
D. All the above
Answer : A

25. Which of the following revolves round the nucleus in an atom?
A. protons
B. electrons
C. neutrons
D. positrons
Answer : B

26. Which force is used when milk is churned to separate cream?
A. cohesive
B. centrifugal
C. frictional
D. gravitational
Answer : B

27. The transistor was invented by
A. Marconi
B. Baird
C. John Bardeen, Walter H. Brattain and William Shockley
D. Edison
Answer : C

28. The cell that can be recharged, after it has run down, by passing a direct current through it from a source of current is
A. Voltaic cell
B. Leclanche cell
C. Dry cell
D. An accumulator
Answer : D

29. A convex mirror always produces
A. an erect, virtual image of diminished size
B. an erect, real image of diminished size
C. an erect, real image of double size
D. a virtual image of double size
Answer : A

30. For viewing objects placed at a higher level from a position at a lower level, the instrument used' Is known aa
A. telescope
B. spectrometer
C. microscope
D. periscope
Answer : D

31. The air inside an electric, bulb is removed to prevent
A. oxidation of the tungsten filament
B. bursting of the bulb
C. loss of light due to absorption
D. keeping the weight of the bulb less
Answer : A

32. Mica is used in an electric iron because it is a
A. good conductor of heat
B. good conductor of electricity
C. bad conductor of electricity
D. Both (a) and (b) above
Answer : C

33. The weight of a body is
A. maximum at the equator
B. minimum at the equator
C. minimum at the poles
D. the same everywhere
Answer : B

34. A man Jumping out of a moving train is thrown
A. forward
B. backward
C. sideways
D. None of the above
Answer : A

35. Where does the centre of gravity of a rubber ring lie?
A. on the outer surface
B. in the inner surface
C. at the centre of the ring
D. None of the above
Answer : C

36. Rain drops acquire spherical shape due to
A. viscosity
B. surface tension
C. friction
D. elasticity
Answer : B

37. The extremely luminous objects located at the centre of some distant galaxies and which are sources of high energy electromagnetic radiation are known as
A. Nebulae
B. Quasars
C. Meteors
D. Comets
Answer : B

38. What is the minimum velocity required for a rocket to overcome earth's gravity and travel into space?
A. 18 km/sec
B. 11.2 km/ sec
C. 21 km/ sec
D. 35 km/ sec
Answer : B

39. In a longitudinal wave, the direction of propagation of the wave is
A. the same as the direction of the vibrations of the vibrating body
B. at right angles to the direction of the vibrations of the vibrating body
C. Both (a) and (b) above
D. None of the above
Answer : A

40. When a body is partly or wholly immersed in a liquid the apparent loss of weight is equal to the weight of the liquid displaced by the submerged portion. This is known as
A. Pascal's law
B. Bernoulli's law
C. Archimedes' law
D. Boyle's law
Answer : C

41. Which of the following sets of elementary particles have nearly equal masses?
A. Neutron and Proton
B. Electron and Proton
C. Neutron and Electron
D. Proton, Neutron and Electron
Answer : A

42. When the velocity of a body is halved
A. its momentum is halved
B. its kinetic energy is halved
C. its acceleration is halved
D. its potential energy is halved
Answer : A

43. An ohm is a unit of
A. potential difference
B. resistance
C. current
D. All the above
Answer : B

44. A permanent magnet may be demagnetised by
A. placing it inside a solenoid through which an alternating current is flowing
B. heating the magnet to redness and then allowing it to cool
C. dropping it several times or hammering it while lying east-west
D. All the above
Answer : D

45. The sun continuously produces an enormous amount of energy. This la due to
A. nuclear fission
B. nuclear fusion
C. chemical combustion
D. boiling
Answer : B

46. Which of the following wires of same dimensions offers least resistance to the ,flow of current?
A. copper
B. aluminium
C. silver
D. nichrome
Answer : C

47. Heat is transmitted from one end of a metal rod to its other end by the method of
A. conduction
B. convection
C. radiation
D. sublimation
Answer : A

48. The function of a moderator in a nuclear reactor is
A. to absorb unwanted neutrons
B. to slow down the fast neutrons to secure more effective hits on other nuclei
C. to decrease the number of fissile nuclei
D. to increase the number of fissile nuclei
Answer : B

49. Credit for starting Space Science Research in India goes to
A. HJ Bhabha
B. SS Bhatnagar
C. V Sarabhai
D. CV Raman
Answer : C

50. In the case of bodies falling under gravity which of the following remains constant at a given place?
A. kinetic energy
B. potential energy
C. acceleration
D. All the above
Answer : C