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.Management Sciences
Category: Physics Mcqs
After traveling through a vacuum a photon of light entering into some transparent denser medium. Thus the energy of light______________?
A. Increases because wavelength decreases
B. Decreases because speed decreases
C. Remains same
D. Increases then decrease
During an encounter with an atom alpha particle knocks out ______________?
A. Protons
B. Electrons
C. Neutrons
D. Nothing
Slope of velocity time graph is_____________________?
A. acceleration
B. distance
C. force
D. momentum
Two vectors are A = 3i^+2j^ -k^& B = 3i^-2j^ +k^ , then_____________?
A. B is anti-parallel to A
B. B is a negative vector of A
C. B has a negative magnitude
D. B is perpendicular to A
If 1 ampere current flows through 2m long conductor the charge flow through it in 1 hour will be_______________?
A. 3600C
B. 7200C
C. 1C
D. 2C
Torque is defined as______________?
A. Turning effect of force
B. Cross product of position vector and force
C. Product of force and moment arm
D. All A, B and C are correct
Pair production takes place in the vicinity of a heavy nucleus so that_____________?
A. Net energy is conserved
B. Net charge is conserved
C. Net momentum is conserved
D. All of the above
Electrical energy is measured in___________________?
A. watt
B. horse power
C. kilo watt
D. kilowatt hour
The uncertainty in momentum & position is due to its_____________?
A. Property of matter and radiation
B. Two-dimensional motion
C. Emission of the certain wavelength
D. Very high velocity
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