Physics GK Question
Quiz 1
Que: Cooking vessels have wooden or Bakelite handles
because
(A) Wood and Bakelite are bad conductors of heat
(B) The handle must be strong
(C) The handle must be attractive
(D) None
Answer: (A) Wood and Bakelite are bad conductors of heat
Que: Mercury is generally used in thermometers as it has
(A) High fluidity
(B) High density
(C) High conductivity
(D) High specific heat
Answer: (C) High conductivity
Que: The humidity of air depends on
(A) Temperature
(B)
Location
(C) Weather
(D)
All of them
Answer: (D) All of them
Que: Which of the following have the same unit ?
(A) Work and power
(B) Torque and moment of inertia
(C) Work and torque
(D) Torque and angular movement
Answer: (C) Work and torque
Que: In a particular system, the units of length, mass
and time are chosen to be 10 cm, 10 g and 0.1s respectively. The unit of force in this system will
be equivalent to
(A) 0.1 N
(B)
1 N
(C) 10 N
(D)
100 N
Answer: (A) 0.1 N
Que: Distance of stars are measured in
(A) Galactic unit
(B) Stellar mile
(C) Cosmic kilometre
(D) Light year
Answer: (D) Light year
Que: Loudness of sound depends on
(A) Frequency
(B) Wavelength
(C) Amplitude
(D) Pitch
Answer: (C) Amplitude
Que: A moving neutron collides with a stationary
a-particle. The fraction of the kinetic energy lost by the
neutron is
(A) 1/4
(B)
1/16
(C) 9/25
(D)
16/25
Answer: (D) 16/25
Que: Which of these waves can be polarised ?
(A) Sound waves in air
(B) Longitudinal waves on a string
(C) Transverse waves on a string
(D) Light waves
Answer: (D) Light waves
Que: The unit of Plank’s constant is......
(A) Js
(B)
Js-2
(C) J/s
(D)
Js2
Answer: (A) Js
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