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.Management Sciences
Category: Physics Mcqs
A three-dimensional image is obtained by________________?
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A. Electron microscope
B. Scanning electron microscope
C. Magnetic imaging
D. None of the above
The force responsible for the vibratory motion of the simple pendulum is_________________?
A. mg cosθ
B. mg sinθ
C. mg tonθ
D. mg
The period of a circular motion is given by_______________?
A. T = πv
B. T = πw
C. T = 2πr
D. T = 2πr/v
In an X-ray tube electrons each of charge e are accelerated through V potential difference allowed to hit a metal target. The wavelength of the X-rays emitted is_______________?
A. he/ev
B. he/Vc
C. eV/h
D. impossible to predict
Reciprocal of resistivity is called__________________?
A. resistance
B. inductance
C. conductivity
D. flexibility
The name of the photon for quantum of light was proposed by________________?
A. Ampere
B. Plank
C. Thomson
D. Einstein
Which one of following postulate is in accordance with the Rutherfords model ?
A. continuous spectra for atoms
B. discrete spectra for atoms
C. either continuous nor discrete
D. no spectrum
Tick the correct statement ?
A. the flight path of a vertically falling body appears straight to the stationary observer
B. the flight path of vertically falling body appears parabolic to an observer in uniform relative motion
C. all states of rest and motion are relative and there is no such thing as absolute motion
D. all the above
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