General Science Physics MCQ Quiz Questions and Answers Quiz Questions

1. Consider the following statements:

A Only 1 B Only 2 C Both 1 & 2 D Neither 1 nor 2

2. Consider the following statements:

A Only 1 is correct B Only 3 is correct C 2 & 3 are correct D 1 , 2 & 3 are correct

3. With reference to the Sound waves, which among the following is / are correct statements?

A Only 1 B Only 2 C Both 1 & 2 D Neither 1 nor 2

4. Which of the following is / are correct statements with respect to the so called “pink noise”?

A Only 1 B Only 1 & 2 C Only 2 & 3 D 1, 2 & 3

5. The ultraviolet radiations find their applications in which of the following?

A Only 1, 2 & 3 B Only 2, 3, 4 & 5 C Only 1, 2, 3 & 4 D 1, 2, 3, 4 & 5

6. Which of the following statements with respect to the speed of light in various media is / are correct?

A Only 1 is correct B Only 2 is correct C Both 1 & 2 are correct D Both 1 & 2 are incorrect

7. Due to which of the following phenomena, the coloured glass appears white when crushed into fine powder?

A Total Internal Reflection B Diffraction C Scattering D Refraction

8. By how many times are the Electrostatic forces stronger than the Gravitational Forces for a fixed distance?

A 10 B 10 C 10 D 2

9. Optical Fibre technology works on which of these principles of Physics?

A Bernoulli’s Principle B Newton’s law of Motion C Total internal reflection of Light D Photoelectric effect

10. Which of the following is correct about the properties of Gravitational Forces?

A They are the strongest forces in nature B They observe inverse square law C Both a and b D None

11. What happens when light travels from a denser medium to a rarer medium?

A it slows down and bends towards the normal B it speeds up and bends towards the normal C it slows down and bends away from the normal D it speeds up and bends away from the normal

12. What of the following represents linear magnification?

A ratio of the height of the image to the height of the object B ratio of the height of the object to the height of the image C product of the height of the object to the height of the image D difference of the height of the image to the height of the object

13. What is the equivalent internal resistance of a series combination of n cells?

A the arithmetic mean of their internal resistance B the product of their individual internal resistance C the sum of their individual internal resistance D the sum of the reciprocal of their individual internal resistance

14. Which of these are electrochemical cells?

A Galvanic cells B Electrolytic cells C Both a and b D None of the above

15. What do we call the electrode that can be oxidized or reduced in half reaction?

A Inert electrode B Active electrode C Sleeping electrode D Passive electrode

16. Which of the following is correct about Permeability of free space?

A It is a scalar quantity B Its S.I unit is T m A C Both a and b D None of the above

17. Which of the following is correct?

A Freely suspended magnet always align in north-south direction B Magnetic poles of a magnet are of equal strength C Both a and b D None of the above

18. Which of the following is the name given to electrons moving at high speed?

A Alpha particles B Beta particles C Gamma particles D None

19. Which of the following is a limitation of Bohr’s model of atom?

A it does not explain why orbits of electrons are taken as circular B it does not take into account the wave nature of electrons C Both a and b D None

20. What happens to the resistance of a p-n junction diode when forward biased?

A it becomes high B No effect C it becomes low D it becomes zero

21. What is the force of attraction between any two bodies by virtue of their masses is called?

A Electromagnetic Force B Gravitational Force C Centripetal Force D Nuclear Force

22. What is the relation between Time period and Frequency in case of uniform circular motion?

A reciprocal to each other B equal to each other C no relation between them D Time period is one half of the Frequency

23. Newton’s third law of motion applies to which of these forces?

A Gravitational B Electric C Magnetic D All of the Above

24. Which of the following is incorrect:

A Gravitational force of attraction is independent of nature of intervening medium B Gravitational forces are central forces C Gravitational forces are non-conservative forces D All of the above

25. On which of the following the gravitational force between two objects does not depend?

A Gravitational constant B Distance between the objects C Product of the masses of the objects D Sum of the masses of the objects

26. Which of the following statements is correct?

A Bulk stress occurs only in liquids B Longitudinal stress occurs only in solids C Both a and b D None of the above

27. Which of the following is equal to the upthrust of the body?

A mass of body B weight of liquid C weight of liquid displaced D density of liquid

28. What will be the general value of angle of contact when the liquid does not wet the solid?

A acute B obtuse C zero D 90°

29. What is the angle of contact for pure water and glass?

A 0° B 30° C 180° D 90°

30. What is the relationship between Kinetic and limiting friction?

A Kinetic friction is slightly greater than limiting friction B Kinetic friction is slightly less than limiting friction C Kinetic friction is equal to limiting friction D No relationship

31. Angle of friction is _______:

A equal to angle of repose B equal to twice the angle of repose C is greater than the angle of repose D is less than the angle of repose

32. Which of the following is an example of application of force?

A when a body at rest starts moving B when a moving body stops C when moving body changes its direction D All of the above

33. The energy by virtue of its position is known as:

A Kinetic energy B Potential energy C Internal energy D Heat energy

34. What will be the effect on the value of acceleration due to gravity at the poles if the rate of rotation of earth increases?

A No effect B it will increase C it will decrease D it will become zero

35. What happens to the orbital velocity of a satellite when the radius of orbit is increased?

A it decreases B it increases C it remains same D None of the above

36. What is the density of water at 4°?

A 1.0 B 1.0 × 10 C m–3 D 1.0 × 10 5 m–3 6 10 kg m–3

37. What is the SI unit of viscosity?

A candela B poiseiulle C Newton/m D No units

38. Which of the following represents Kinematic viscosity?

A Viscosity/temperature B Viscosity/area C Viscosity/density D Viscosity/mass

39. What is the time period for a satellite orbiting close to the surface of earth?

A 84.6 minutes B 72.4 minutes C 44.8 minutes D 24 hours

40. Which of these is correct about Simple Harmonic Motion?

A Restoring force is directly proportional to the displacement from mean position B Restoring force is equal to the displacement from mean position C Restoring force is inversely proportional to the displacement from mean position D Restoring force is half of the displacement from mean position

41. Which of the following about S.H.M is correct?

A In S.H.M. acceleration is maximum at extreme position B In S.H.M. velocity is minimum at extreme position C Both a and b D None of the above

42. What happens to the time period of the simple pendulum if the solid bob is replaced by a hollow sphere of same radius but half the mass?

A time period becomes double B time period remains unchanged C time period becomes half D time period becomes four times

43. By what phase angle the velocity is ahead of displacement in S.H.M?

A π B π/4 C π/2 D 2π

44. Which of the following electromagnetic waves are produced due to the radioactive decay of the nucleus?

A X-rays B Gamma rays C Radio waves D UV rays

45. Which of the following waves is absorbed by the ozone layer present in the atmosphere?

A Gamma B Visible C Radio D Ultra violet

46. What is the time taken by two consecutive compressions or rarefactions to cross a fixed point in a sound wave known as?

A Amplitude B Time period C Angular Frequency D Angular Displacement

47. What do we call the process taking place at constant volume?

A Adiabatic B Isothermal C Isochoric D Isobaric

48. What is a Carnot engine?

A A reversible refrigeration device operating between two temperatures B A reversible heat engine operating between two temperatures C An irreversible heat engine operating between two temperatures D A reversible heat engine operating between multiple range of temperatures

49. What is the splitting of light into its colours known as?

A Diffusion B Dispersion C Refraction D None of the above