Waves in Physics Mcqs

This collections of Multiple choice questions and answers focuses on study of Waves in Physics. These questions are chosen from a collection of most authoritative and best reference books on Physics. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate knowledge on Waves in Physics comprehensively.

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31.
The waves that require a material medium for their propagation are called

Matter waves

Electromagnetic waves

Carrier waves

Mechanical waves

32.
Ultrasonic have

Frequency in the audible range

Frequency is greater than 20 kHz

Frequency lower than 20 Hz

All of above

34.
Waves produced at the surface of water by a pencil executing vibrating motion if held vertically at a frequency of 50Hz are

Longitudinal

Transverse

Periodic

Both (a) and (c)

36.
When the source of sound moves away form a stationary listener then _________ occurs.

An apparent increase in frequency

An apparent decrease in frequency

An apparent decrease in wavelength

No apparent change in frequency

37.
When two identical traveling waves are superimposed, the velocity of the resultant wave

Decreases

Increases

Remains unchanged

Becomes zero

38.
Which one is the correct relation for fundamental frequency of open and closed pipe?

Fopen = 2 fclosed

Fclosed = 2fopen

Fopen = fclosed

Fopen = 1 / f closed

40.
Which phenomena can be applied to estimate the velocity of star with respect to earth

Dopplers effect

Interference of waves

Beats phenomena

All of these

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