# 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.

Sound waves do not travel in vacuum because ___________________?

A. they are transverse waves
B. they are stationary waves
C. they require material medium for propagation
D. they do not have enough energy

Increase in velocity of sound in the air for 1°C rise in temperature is_________________?

A. 1.61 ms-1
B. 61.0 ms-1
C. 0.61 ms-1
D. 2.00 ms-1

On loading the prong of a tuning form with wax its frequency____________________?

A. increases
B. decreases
C. remains unchanged
D. may increase or decrease

The normal ear is the most sensitive in the frequency range___________________?

A. 20000 to 30000 hertz
B. 10 to 20 hertz
C. 2000 to 4000 hertz
D. 6000 to 8000 hertz

The velocity of sound in air would become double than its velocity at 0°C at temperature________________?

A. 313°C
B. 586°C
C. 819°C
D. 1172°C

The periodic alternation of sound between maximum and minimum loudness are called___________________?

A. silence zone
B. interference
C. beats
D. resonance

Beats are the results of____________________?

A. diffraction of sound waves
B. constructive and destructive interference
C. polarization
D. destructive interference

Doppler effect applies to____________________?

A. sound wave only
B. light wave only
C. both sound and light waves
D. neither sound nor light wave

A simple pendulum has a bob of mass m and its frequency is f. If we replaced the bob with a heavier one say of 2m then that will be its new frequency?

A. 1/4f
B. 1/2f
C. frequency lower than 20 Hz
D. 2f

In open organ pipe___________________?

A. only even harmonics are present
B. only odd harmonics are present
C. both even and odd harmonics are present
D. selected harmonics are present