Sounds waves and Motion MCQ question and answer with solution

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Each section contains 100 MCQs on Sounds waves and Motion .

Two waves, each of amplitude 1.5 mm and frequency 10 Hz, are travelling in opposite direction with a speed of 20 mmls. The distance in mm between adjacent nodes is

A) 1.0 B) 1.2 C) 1.5 D) 2.0

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which is the incorrect statement with regard to ultrasound waves?

A) They are high frequency waves B) They are used in industries and for medical purposes C) They travel among well-defined path even in the presence of obstacles D) Ultrasound cannot be reflected back from defective locations

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Sound waves

A) can travel in vacuum B) can travel both in solid and gaseous medium C) can travel only in gases D) None of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The speed of sound is faster in

A) solids B) liquids C) gases D) vacuum

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Fill in the blank with the most appropriate option.
Pitch of sound depends on . . . . . . . .

A) frequency B) wavelength C) amplitude D) rhythm

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which one of the following units is used for measurement of noise pollution?

A) Nanometer B) Decibel C) Hertz D) None of these

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

What is the repetition of sound, produced by the reflection of sound waves?

A) double B) echo C) noise D) note

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

A sound wave produced at wavelength 2.5m, its frequency is 400 Hz. Find the velocity of wave.

A) 100m/s B) 10m/s C) 1000m/s D) 10000m/s

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which of the following is not a quality of sound waves?

A) Amplitude B) Time period and frequency C) Speed D) Density

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Sound wave is not characterized-

A) Amplitude B) Velocity C) The frequency D) Hertz

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

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Sounds waves and Motion MCQ question and answer with solution | Physics Gk MCQs