Sounds waves and Motion MCQ question and answer with solution

Section 1 Section 2 Section 3 Section 4

91.
Speed of sound in seawater . . . . . . . . it occurs.

A. 1948 m/s

B. 1351 m/s

C. 1531 m/s

D. 1498 m/s

Answer & Solution Discuss in Board Save for Later

92.
Which of the following will have the maximum speed of sound at 25°C?

A. Brass

B. Steel

C. Aluminium

D. Iron

Answer & Solution Discuss in Board Save for Later

93.
Which of the following statements are true/false about the speed of sound in different mediums on 25°C
A. In water (marine), the speed of sound is 1531 m/s.
B. In ethanol, the speed of sound is 1200 km/s.

A. Only A is correct

B. Neither A nor B is correct

C. Only B is correct

D. Both A and B are correct

Answer & Solution Discuss in Board Save for Later

94.
Longitudinal waves cannot travel through

A. vacuum

B. solid

C. liquid

D. gas

Answer & Solution Discuss in Board Save for Later

95.
To hear different echoes, the minimum distance of obstruction from the source of sound should be . . . . . . . .

A. 172 m

B. 17.2 m

C. 344 m

D. 34.4 m

Answer & Solution Discuss in Board Save for Later

96.
The velocity of a particle performing simple harmonic motion when it passes through its mean position is

A. infinity

B. zero

C. minimum

D. maximum

Answer & Solution Discuss in Board Save for Later

97.
The sounds having a frequency of 20 Hz to 20000 Hz are known as

A. audible sounds

B. ultrasonics

C. infrasonics

D. megasonics

Answer & Solution Discuss in Board Save for Later

98.
A maritime survey ship sends a sound wave to the ocean floor, which receives an echo or resonance after 2.5 s. The speed of sound in seawater is 1200 ms^-1. What is the depth of the ocean?

A. 1000 m

B. 1200 m

C. 2500 m

D. 1500 m

Answer & Solution Discuss in Board Save for Later

99.
Which of the following statements is correct?

A. If the constituents of the medium oscillate perpendicular to the direction of wave propagation, we call the wave as a longitudinal wave

B. If the constituents of the medium oscillate along the direction of wave propagation, we call the wave as a transverse wave

C. Frequency of a wave is the number of oscillations of each constituent particle in the vibrating medium per minute

D. The minimum distance between two points in a wave having the same phase at a particular instant of time is called the wavelength

Answer & Solution Discuss in Board Save for Later

100.
An astronaut cannot hear his companion ar the surface of the Moon because

A. Produced frequencies are above the audio frequency

B. Temperature is too low during night and too high during day

C. There is no medium for sound propagation

D. There are many craters on the surface of the Moon

Answer & Solution Discuss in Board Save for Later

1 2 3 4 5 6 7 8 9 10

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

91. Speed of sound in seawater . . . . . . . . it occurs.

Answer & Solution

92. Which of the following will have the maximum speed of sound at 25°C?

Answer & Solution

93. Which of the following statements are true/false about the speed of sound in different mediums on 25°C A. In water (marine), the speed of sound is 1531 m/s. B. In ethanol, the speed of sound is 1200 km/s.

Answer & Solution

94. Longitudinal waves cannot travel through

Answer & Solution

95. To hear different echoes, the minimum distance of obstruction from the source of sound should be . . . . . . . .

Answer & Solution

96. The velocity of a particle performing simple harmonic motion when it passes through its mean position is

Answer & Solution

97. The sounds having a frequency of 20 Hz to 20000 Hz are known as

Answer & Solution

98. A maritime survey ship sends a sound wave to the ocean floor, which receives an echo or resonance after 2.5 s. The speed of sound in seawater is 1200 ms-1. What is the depth of the ocean?

Answer & Solution

99. Which of the following statements is correct?

Answer & Solution

100. An astronaut cannot hear his companion ar the surface of the Moon because

Answer & Solution

Read More Section(Sounds waves and Motion)

91.
Speed of sound in seawater . . . . . . . . it occurs.

92.
Which of the following will have the maximum speed of sound at 25°C?

93.
Which of the following statements are true/false about the speed of sound in different mediums on 25°C
A. In water (marine), the speed of sound is 1531 m/s.
B. In ethanol, the speed of sound is 1200 km/s.

94.
Longitudinal waves cannot travel through

95.
To hear different echoes, the minimum distance of obstruction from the source of sound should be . . . . . . . .

96.
The velocity of a particle performing simple harmonic motion when it passes through its mean position is

97.
The sounds having a frequency of 20 Hz to 20000 Hz are known as

98.
A maritime survey ship sends a sound wave to the ocean floor, which receives an echo or resonance after 2.5 s. The speed of sound in seawater is 1200 ms^-1. What is the depth of the ocean?

99.
Which of the following statements is correct?

100.
An astronaut cannot hear his companion ar the surface of the Moon because