Sound Test

Result

Sound Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

The time period of a pendulum, which is vibrating at 10 hertz is

A
10 s

B
0.1 s

C
0.2 s

D
30 s
Question 2
1 / -0

The product of time period and frequency is

A
zero

B
unity

C
infinity

D
none of these
Question 3
1 / -0

The maximum displacement of a particle in a wave motion is called

A
frequency

B
amplitude

C
time period

D
phase
Question 4
1 / -0

Wavelength is defined as the distance between

A
two consecutive particles in the same phase

B
two consecutive crests

C
two consecutive troughs

D
all of these
Question 5
1 / -0

The time period of Khushi`s voice is 0.002 seconds. The frequency of her voice is

A
5000 Hz

B
500 Hz

C
50 Hz

D
5 Hz
Question 6
1 / -0

Which of the following are not transverse waves?

A
X-rays

B
Visible light waves

C
γ-rays

D
Sound waves in a gas

Solution

Sound waves in a gas are not transverse waves.
Question 7
1 / -0

Whose voice among the following is likely to have a minimum frequency?

A
A baby girl

B
A baby boy

C
A man

D
A woman
Question 8
1 / -0

Which of the following statements is wrong?

A
Velocity of light in vacuum is 3 x 10⁸ m/s.

B
Sound travels faster in dry air than in the moist air.

C
The audible frequency range for human beings is 20 Hz - 20000 Hz.

D
Sound waves do not propagate in vacuum.
Question 9
1 / -0

The speed of sound in gas at NTP is 300 m/s. If the pressure is increased three times and the temperature remains the same, what will be the velocity of sound?

A
100 m/s

B
300 m/s

C
600 m/s

D
900 m/s

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Sound Test - 3

Result

Sound Test - 3

Score

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Rank

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SHARING IS CARING

Question 1

10 s

0.1 s

0.2 s

30 s

Question 2

zero

unity

infinity

none of these

Question 3

frequency

amplitude

time period

phase

Question 4

two consecutive particles in the same phase

two consecutive crests

two consecutive troughs

all of these

Question 5

5000 Hz

500 Hz

50 Hz

5 Hz

Question 6

X-rays

Visible light waves

γ-rays

Sound waves in a gas

Solution

Question 7

A baby girl

A baby boy

A man

A woman

Question 8

Velocity of light in vacuum is 3 x 108 m/s.

Sound travels faster in dry air than in the moist air.

The audible frequency range for human beings is 20 Hz - 20000 Hz.

Sound waves do not propagate in vacuum.

Question 9

100 m/s

300 m/s

600 m/s

900 m/s

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Velocity of light in vacuum is 3 x 10⁸ m/s.