Question 1.
Which physical quantity is measured in ‘siemens’?
A. Electric potential
B. Electrical conductance
C. Magnetic flux
D. Refractive index
Ans: B. Electrical conductance
Question 2.
Two vectors are said to be equal if
A. Only their magnitudes are same
B. Only their directions are same
C. Both magnitude and direction are same
D. Magnitudes are same but directions are opposite
Ans: C. Both magnitude and direction are same
Question 3.
In a __ the wave particles of the medium vibrate in a direction perpendicular to the direction of wave propagation
A. Longitudinal
B. Rolling
C. Transverse
D. Field
Ans: C. Transverse
Question 4.
The wavelength of a wave is the distance between
A. Crest and Trough
B. Crest and Crest
C. Trough and Trough
D. Both B & C
Ans: D. Both B & C
Question 5.
Hydroscope is an instrument that shows changes in:
A. Sound under water
B. Atmospheric humidity
C. Density of liquid
D. None of these
Ans: D. None of these
Question 6.
Which of the following is a vector quantity?
A. Area
B. Power
C. Electric Current
D. Energy
Ans: A. Area
Question 7.
Which of the following is the unit of perceived loudness of sound ?
A. Decibel
B. Sone
C. Hertz
D. Phon
Ans: C. Hertz
Question 8.
Longitudinal waves cannot travel through
A. Vacuum
B. Solid
C. Liquid
D. Gas
Ans: A. Vacuum
Question 9.
Unit of impedance is __
A. Ohm
B. Henry
C. Tesla
D. Hertz
Ans: A. Ohm
Question 10.
Which of the following is not a vector quantity?
A. Acceleration
B. Density
C. Displacement
D. Impulse
Ans: B. Density
Question 11.
The component used for tuning a radio is basically a variable
A. Resisto
B. Condenser
C. Inductor
D. Transformer
Ans: B. Condenser
Question 12.
Flight Recorder is technically called :
A. Dark box
B. Blind box
C. Black box
D. Altitude meter
Ans: C. Black box
Question 13.
Stress can be defined as __ quantity.
A.Scalar
B. Vector
C. Phasor
D. Tensor
Ans: D. Tenso
Question 14.
Which of the following is not a vector quantity ?
A. Speed
B. Velocity
C. Torque
D. Displacement
Ans: A. Speed
Question 15.
A wave with high amplitude have
A. High pitch
B. Low energy
C. High energy
D. Low pitch
Ans: C. High energy
Question 16.
A gradual increase in loudness is known as
A. Crescendo
B. Timbre
C. Fortissimo
D. None of the above
Ans: A. Crescendo
Question 17.
In spherical polar coordinates (l, q, a), q denotes the polar angle around z-axis and a denotes the azimuthal angle raised from x-axis . Then the y-component of P is given by
A. Psinq sina
B. Psinq cosa
C. Pcosq sina
D. Pcosq cosa
Ans: A. Psinq sina
Question 18.
These waves cannot be transmitted through vacuum.
A. Light
B. Sound
C. Heat
D. Electromagnetic
Ans: B. Sound
Question 19.
A standing wave occurs when
A. A wave reflects upon itself
B. The amplitude of a wave exceeds its wavelength
C. Two waves overlap
D. The speed of the wave is zero or near zero
Ans: A. A wave reflects upon itself
Question 20.
Which of the following property of sound is affected by change in air temperature?
A. Frequency
B. Intensity
C. Amplitude
D. Wavelength
Ans: D. Wavelength
Physics GK MCQs all set
- Physics MCQs Set-1
- Physics MCQs Set-2
- Physics MCQs Set-3
- Physics MCQs Set-4
- Physics MCQs Set-5
- Physics MCQs Set-6
- Physics MCQs Set-7
- Physics MCQs Set-8
- Physics MCQs Set-9
- Physics MCQs Set-10
- Physics MCQs Set-11
- Physics MCQs Set-12
- Physics MCQs Set-13
- Physics MCQs Set-14
- Physics MCQs Set-15
- Physics MCQs Set-16
- Physics MCQs Set-17
- Physics MCQs Set-18
- Physics MCQs Set-19
- Physics MCQs Set-20
- Physics MCQs Set-21
- Physics MCQs Set-22
- Physics MCQs Set-23
- Physics MCQs Set-24
- Physics MCQs Set-25
- Physics MCQs Set-26
- Physics MCQs Set-27
- Physics MCQs Set-28
- Physics MCQs Set-29
- Physics MCQs Set-30
- Physics MCQs Set-31
- Physics MCQs Set-32
- Physics MCQs Set-33
- Physics MCQs Set-34
- Physics MCQs Set-35
- Physics MCQs Set-36
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- Physics MCQs Set-39
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- Physics MCQs Set-41
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- Physics MCQs Set-43
- Physics MCQs Set-44
- Physics MCQs Set-45
- Physics MCQs Set-46
- Physics MCQs Set-47
- Physics MCQs Set-48
- Physics MCQs Set-49
- Physics MCQs Set-50
- Physics MCQs Set-51
- Physics MCQs Set-52
- Physics MCQs Set-53
- Physics MCQs Set-54
- Physics MCQs Set-55
- Physics MCQs Set-56
- Physics MCQs Set-57
- Physics MCQs Set-58
- Physics MCQs Set-59
- Physics MCQs Set-60
- Physics MCQs Set-61
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- Physics MCQs Set-64
- Physics MCQs Set-65
- Physics MCQs Set-66
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- Physics MCQs Set-68
- Physics MCQs Set-69
- Physics MCQs Set-70
- Physics MCQs Set-71
- Physics MCQs Set-72
- Physics MCQs Set-73
- Physics MCQs Set-74
- Physics MCQs Set-75
- Physics MCQs Set-76
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