General Science - Physics

Welcome to General Science – Physics MCQ series of GKToday. As of today February 26, 2020, this series has 590 Questions. You may purchase a PDF E-Book compilation comprising all these questions and their answers with explanation from this link.

51. What is the oscillation in which the loss of oscillator is compensated by the supplying energy from an external source known as?
[A] Free oscillation
[B] Maintained oscillation
[C] Forced oscillation
[D] Damped oscillation

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52. What is second’s pendulum?
[A] simple pendulum whose time period of vibrations is one second
[B] simple pendulum whose time period of vibrations is two seconds
[C] simple pendulum whose time period of vibrations is four seconds
[D] simple pendulum whose time period of vibrations is ten seconds

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53. Which of these means opposite phase of particles?
[A] phase difference between the particle is an odd multiple of π
[B] if the path difference is an odd multiple of (λ / 2)
[C] if the time interval is an odd multiple of T/2
[D] All of the above

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54. What do we call the distance of particle from the mean position at that instant in S.H.M?
[A] Distance
[B] Displacement
[C] Phase
[D] Angular frequency

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55. What do we call the wave if the constituents of the medium oscillate perpendicular to the direction of wave propagation?
[A] Transverse wave
[B] Longitudinal wave
[C] Electromagnetic wave
[D] Matter wave

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56. What is the wavelength of a stationary wave?
[A] twice the distance between two consecutive nodes or antinodes
[B] equal to the distance between two consecutive nodes or antinodes
[C] half the distance between two consecutive nodes or antinodes
[D] four times the distance between two consecutive nodes or antinodes

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57. What is the wavelength range of ultraviolet rays?
[A] Between 40 nm and 40000 nm
[B] Between 60 nm and 4000 nm
[C] Between 0.0006 nm and 400 nm
[D] Between 0.6 nm and 400 nm

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58. Which of the following waves is absorbed by the ozone layer present in the atmosphere?
[A] Gamma
[B] Visible
[C] Radio
[D] Ultra violet

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59. What do we call the magnitude of the maximum disturbance in the medium on either side of the mean value called as?
[A] Frequency
[B] Angular Displacement
[C] Amplitude
[D] Wave number

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60. Which of the following represents the speed of a sound wave?
[A] wavelength x frequency
[B] 2 x wavelength x frequency
[C] wavelength/frequency
[D] (wavelength x frequency)/2

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