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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

An electromagnetic wave consists of _____________________?
A Electric and magnetic fields moving parallel to each other
B Magnetic field moving with velocity of light in space
C Electric field moving with velocity of light
D Electric and magnetic fields moving perpendicular to each other
Correct Answer: Electric and magnetic fields moving perpendicular to each other
In vibratory motion_________________?
A P E remains constant
B K E remain constant
C total energy remains constant
D total momentum remains constant
Correct Answer: total energy remains constant
Electromagnetic waves travel in free space with the speed of___________________?
A λ-rays
B Positive rays
C Cathode rays
D More than sound waves
Correct Answer: λ-rays
For ___________ flow the path of the fluid particles cannot be tracked?
A Laminar
B Streamline
C Turbulent
D Both A and B
Correct Answer: Turbulent
An alternating current or voltage_____________________?
A fluctuates off and on
B varies in magnitude alone
C changes its direction again and again
D changes its magnitude harmonically and reverses its direction of flow after regularly recurring intervals
Correct Answer: changes its direction again and again
The normal blood pressure range for a human body is______________?
A 120 to 80 torr
B 100 to 80 torr
C 120 to 60 torr
D 60 to 140 torr
Correct Answer: 120 to 80 torr
A moving coil galvanometer of resistance 100? gives half scale deflection for a current of 20mA. What will be the potential difference across it ?
A 4 volt
B 5 volt
C 2 volt
D 0.4 volt
Correct Answer: 2 volt
The speed of the fluid is maximum in the venturi meter at_______________?
A Convergent duct
B Divergent duct
C Throat
D None of these
Correct Answer: None of these
Heating a magnet will ____________________?
A weaken it
B strengthen it
C reverse its polarity
D demagnetize it completely
Correct Answer: weaken it
The density of human blood is nearly equal to____________?
A Water
B Honey
C Mercury
D Oil (kerosene)
Correct Answer: Water
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