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Question (1)

QN006062

In the graphical representation of a sound wave, the maximum displacement from the mean position is called

(A) frequency
(B) wavelength
(C) amplitude
(D) intensity

Correct Answer: C

Explanation:

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Question (2)

QN006063

The horizontal distance between two consecutive compressions represents

(A) frequency
(B) wavelength
(C) amplitude
(D) pitch

Correct Answer: B

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Question (3)

QN006064

In a sound wave graph, the number of complete waves produced per second is called

(A) amplitude
(B) intensity
(C) frequency
(D) velocity

Correct Answer: C

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Question (4)

QN006065

The SI unit of wavelength is

(A) second
(B) hertz
(C) metre
(D) decibel

Correct Answer: C

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Question (5)

QN006066

The vertical height of a crest from the mean position indicates

(A) time period
(B) frequency
(C) amplitude
(D) speed

Correct Answer: C

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Question (6)

QN006067

A sound wave graph shows 40 oscillations in 2 seconds. The frequency is

(A) 10 Hz
(B) 20 Hz
(C) 40 Hz
(D) 80 Hz

Correct Answer: B

Explanation:

Frequency = oscillations/time = 40/2 = 20 Hz

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Question (7)

QN006068

The time taken to complete one wave in a graph is known as

(A) wavelength
(B) amplitude
(C) time period
(D) intensity

Correct Answer: C

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Question (8)

QN006069

If the frequency of a wave is 25 Hz, its time period is

(A) 0.04 s
(B) 0.25 s
(C) 4 s
(D) 25 s

Correct Answer: A

Explanation:

T = 1/f = 1/25 = 0.04 s

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Question (9)

QN006070

In a wave graph, the distance between two consecutive rarefactions is equal to

(A) amplitude
(B) wavelength
(C) intensity
(D) pitch

Correct Answer: B

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Question (10)

QN006071

A sound wave graph shows wavelength 5 m and frequency 60 Hz. Wave speed is

(A) 12 m/s
(B) 65 m/s
(C) 300 m/s
(D) 600 m/s

Correct Answer: C

Explanation:

v = fλ = 60 × 5 = 300 m/s

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Question (1)

In the graphical representation of a sound wave, the maximum displacement from the mean position is called

Explanation:

Link:

Question (2)

The horizontal distance between two consecutive compressions represents

Explanation:

Link:

Question (3)

In a sound wave graph, the number of complete waves produced per second is called

Explanation:

Link:

Question (4)

The SI unit of wavelength is

Explanation:

Link:

Question (5)

The vertical height of a crest from the mean position indicates

Explanation:

Link:

Question (6)

A sound wave graph shows 40 oscillations in 2 seconds. The frequency is

Explanation:

Link:

Question (7)

The time taken to complete one wave in a graph is known as

Explanation:

Link:

Question (8)

If the frequency of a wave is 25 Hz, its time period is

Explanation:

Link:

Question (9)

In a wave graph, the distance between two consecutive rarefactions is equal to

Explanation:

Link:

Question (10)

A sound wave graph shows wavelength 5 m and frequency 60 Hz. Wave speed is

Explanation:

Link:

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