Quiz  /  General Science Physics MCQ Quiz Questions and Answers

  • 1. 
    Consider the following statements:

  • Only 1
  • Only 2
  • Both 1 & 2
  • Neither 1 nor 2

  • 2. 
    Consider the following statements:

  • Only 1 is correct
  • Only 3 is correct
  • 2 & 3 are correct
  • 1 , 2 & 3 are correct

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

  • Only 1
  • Only 2
  • Both 1 & 2
  • Neither 1 nor 2

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

  • Only 1
  • Only 1 & 2
  • Only 2 & 3
  • 1, 2 & 3

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

  • Only 1, 2 & 3
  • Only 2, 3, 4 & 5
  • Only 1, 2, 3 & 4
  • 1, 2, 3, 4 & 5

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

  • Only 1 is correct
  • Only 2 is correct
  • Both 1 & 2 are correct
  • Both 1 & 2 are incorrect

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

  • Total Internal Reflection
  • Diffraction
  • Scattering
  • Refraction

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

  • 10
  • 10
  • 10
  • 2

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

  • Bernoulli’s Principle
  • Newton’s law of Motion
  • Total internal reflection of Light
  • Photoelectric effect

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

  • They are the strongest forces in nature
  • They observe inverse square law
  • Both a and b
  • None

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

  • it slows down and bends towards the normal
  • it speeds up and bends towards the normal
  • it slows down and bends away from the normal
  • it speeds up and bends away from the normal

  • 12. 
    What of the following represents linear magnification?

  • ratio of the height of the image to the height of the object
  • ratio of the height of the object to the height of the image
  • product of the height of the object to the height of the image
  • 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?

  • the arithmetic mean of their internal resistance
  • the product of their individual internal resistance
  • the sum of their individual internal resistance
  • the sum of the reciprocal of their individual internal resistance

  • 14. 
    Which of these are electrochemical cells?

  • Galvanic cells
  • Electrolytic cells
  • Both a and b
  • None of the above

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

  • Inert electrode
  • Active electrode
  • Sleeping electrode
  • Passive electrode

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

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

  • 17. 
    Which of the following is correct?

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

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

  • Alpha particles
  • Beta particles
  • Gamma particles
  • None

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

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

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

  • it becomes high
  • No effect
  • it becomes low
  • it becomes zero

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

  • Electromagnetic Force
  • Gravitational Force
  • Centripetal Force
  • Nuclear Force

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

  • reciprocal to each other
  • equal to each other
  • no relation between them
  • Time period is one half of the Frequency

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

  • Gravitational
  • Electric
  • Magnetic
  • All of the Above

  • 24. 
    Which of the following is incorrect:

  • Gravitational force of attraction is independent of nature of intervening medium
  • Gravitational forces are central forces
  • Gravitational forces are non-conservative forces
  • All of the above

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

  • Gravitational constant
  • Distance between the objects
  • Product of the masses of the objects
  • Sum of the masses of the objects

  • 26. 
    Which of the following statements is correct?

  • Bulk stress occurs only in liquids
  • Longitudinal stress occurs only in solids
  • Both a and b
  • None of the above

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

  • mass of body
  • weight of liquid
  • weight of liquid displaced
  • density of liquid

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

  • acute
  • obtuse
  • zero
  • 90°

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

  • 0°
  • 30°
  • 180°
  • 90°

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

  • Kinetic friction is slightly greater than limiting friction
  • Kinetic friction is slightly less than limiting friction
  • Kinetic friction is equal to limiting friction
  • No relationship

  • 31. 
    Angle of friction is _______:

  • equal to angle of repose
  • equal to twice the angle of repose
  • is greater than the angle of repose
  • is less than the angle of repose

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

  • when a body at rest starts moving
  • when a moving body stops
  • when moving body changes its direction
  • All of the above

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

  • Kinetic energy
  • Potential energy
  • Internal energy
  • 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?

  • No effect
  • it will increase
  • it will decrease
  • it will become zero

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

  • it decreases
  • it increases
  • it remains same
  • None of the above

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

  • 1.0
  • 1.0 × 10
  • m–3
  • 1.0 × 10
  • m–3
  • 10 kg m–3

  • 37. 
    What is the SI unit of viscosity?

  • candela
  • poiseiulle
  • Newton/m
  • No units

  • 38. 
    Which of the following represents Kinematic viscosity?

  • Viscosity/temperature
  • Viscosity/area
  • Viscosity/density
  • Viscosity/mass

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

  • 84.6 minutes
  • 72.4 minutes
  • 44.8 minutes
  • 24 hours

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

  • Restoring force is directly proportional to the displacement from mean position
  • Restoring force is equal to the displacement from mean position
  • Restoring force is inversely proportional to the displacement from mean position
  • Restoring force is half of the displacement from mean position

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

  • In S.H.M. acceleration is maximum at extreme position
  • In S.H.M. velocity is minimum at extreme position
  • Both a and b
  • 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?

  • time period becomes double
  • time period remains unchanged
  • time period becomes half
  • time period becomes four times

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

  • π
  • π/4
  • π/2
  • 2π

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

  • X-rays
  • Gamma rays
  • Radio waves
  • UV rays

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

  • Gamma
  • Visible
  • Radio
  • 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?

  • Amplitude
  • Time period
  • Angular Frequency
  • Angular Displacement

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

  • Adiabatic
  • Isothermal
  • Isochoric
  • Isobaric

  • 48. 
    What is a Carnot engine?

  • A reversible refrigeration device operating between two temperatures
  • A reversible heat engine operating between two temperatures
  • An irreversible heat engine operating between two temperatures
  • A reversible heat engine operating between multiple range of temperatures

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

  • Diffusion
  • Dispersion
  • Refraction
  • None of the above
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