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Physics 914 MCQs [All-Courses]

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Physics is a core science subject that deals with the study of matter, energy, motion, force, heat, light, electricity, magnetism, and modern physics concepts. It plays a vital role in competitive exams such as PPSC, FPSC, NTS, OTS, KPPSC, BPSC, AJKPSC, CSS, and PMS, where questions test conceptual understanding, numerical problem-solving, and application of laws and formulas. 

All Topics  914

The consumption of energy by a 60 watt bulb in 2 sec is_________________?
A 120 J
B 60 J
C 30 J
D 0.02 J
Correct Answer: 120 J
Which of the following is not conservative force_________________?
A friction
B electric
C gravitational
D magnetic
Correct Answer: friction
If velocity is doubled then__________________?
A momentum increases 4 times and K.E increases 2 times
B momentum and K.E. remain same
C momentum increases 2 times and K.E increases constant
D momentum increases 2 times and K.E increases 4 time
Correct Answer: momentum increases 2 times and K.E increases 4 time
Work done by the force of friction is____________________?
A always positive
B always negative
C positive only for small frictional force
D positive only for large frictional force
Correct Answer: always negative
The source of geothermal energy is___________________?
A decay of radioactive element in the earth
B compression of material in the earth
C residual lost of the earth
D all as said in A – B and C
Correct Answer: all as said in A – B and C
The escape velocity of a body in gravitational field of earth is independent of__________________?
A its mass
B the angle at which it is thrown
C both its mass and the angle at which it is thrown
D gravitational field of earth
Correct Answer: its mass
Work done by variable force is determine by dividing____________________?
A force into small interval
B displacement into small interval
C both force and displacement into small intervals
D force into small and displacement into large intervals
Correct Answer: displacement into small interval
Proton electron neutron and a particles have same momentum. Which of them have highest K.E ?
A Proton
B electron
C neutron
D a-particle
Correct Answer: electron
The average power and instantaneous power become equal if work is done at __________________?
A any rate
B at variable rate
C at uniform rate
D at high rate
Correct Answer: at uniform rate
If a body a mass of 2 kg is raised vertically through 2m, then the work done will be _________________?
A 38.2 J
B 392.1 J
C 39.2 J
D 3.92 J
Correct Answer: 39.2 J
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