# Physics MCQs

Physics Mcqs for Test Preparation from Basic to Advance. Physics Mcqs are from the different sections of Physics. Here you will find Mcqs of Physics and quantum physics subject from Basic to Advance. Which will help you to get higher marks in Physics subject. These Mcqs are useful for students and job seekers i.e MCAT ECAT ETEA test preparation, PPSC Test, FPSC Test, SPSC Test, KPPSC Test, BPSC Test, PTS, OTS, GTS, JTS, CTS, NTS        .

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

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

Electromagnetic waves travel in free space with the speed of___________________?

A. λ-rays
B. Positive rays
C. Cathode rays
D. More than sound waves

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

Waves emitted from the antenna are__________________?

A. Sound waves
B. Electromagnetic waves
D. Modulated waves

If capacitance of L-C circuit is made four times then frequency of the circuit becomes___________________?

A. Twice
B. One half
C. Four times
D. None

The value of the steady current which when flowing through the same resistor produces heat at the same rate as the mean rate of heat produced by the alternating current is__________________?

A. Average current
B. Sinusoidal current
C. r.m.s current
D. Net current

An alternating current of the r.m.s value of 4.0 A and frequency 50Hz flows in a circuit containing a 10Ω resistor. The peak current is then ?

A. 20A
B. 20.66A
C. 6.66A
D. 5.66A

A changing magnetic flux produces around itself an induced_______________?

A. Magnetic field
B. Electric field
C. Electromagnetic force
D. Artificial gravitational field

The direction of propagation of an electromagnetic waves is________________?

A. Perpendicular to electric field
B. Perpendicular to both electric and magnetic field
C. Perpendicular to magnetic field
D. Parallel to electric and magnetic field