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Question (41)

QN005953

Which property of sound is demonstrated by hearing a tuning fork in different orientations?

(A) Sound propagates in multiple directions
(B) Sound changes colour
(C) Sound travels only upward
(D) Sound remains stationary

Correct Answer: A

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Question (42)

QN005954

A medium is essential for propagation of

(A) light only
(B) radio waves only
(C) sound waves
(D) X-rays

Correct Answer: C

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Question (43)

QN005955

Which example best demonstrates propagation of sound through liquids?

(A) Ringing school bell
(B) Vibrating rubber band
(C) Tapping submerged metal spoons
(D) Striking tabla

Correct Answer: C

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Question (44)

QN005956

If the speed of sound in air is 340 m/s, how long will it take to travel 850 m?

(A) 1 s
(B) 2 s
(C) 2.5 s
(D) 5 s

Correct Answer: C

Explanation:

Time = distance/speed = 850/340 = 2.5 s

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Question (45)

QN005957

Sound travels 5000 m through steel in 1 s. The speed is

(A) 340 m/s
(B) 1500 m/s
(C) 2500 m/s
(D) 5000 m/s

Correct Answer: D

Explanation:

Speed = 5000/1 = 5000 m/s

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Question (46)

QN005958

Which phenomenon proves that sound carries energy through a medium?

(A) Reflection from walls
(B) Vibrating grains on stretched sheet
(C) Formation of shadows
(D) Magnetic attraction

Correct Answer: B

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Question (47)

QN005959

The motion of particles during sound propagation is best described as

(A) circular motion
(B) oscillatory motion about mean position
(C) uniform straight line motion
(D) rotational motion

Correct Answer: B

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Question (48)

QN005960

Which statement about compressions is correct?

(A) Density is lower than average
(B) Particles are farther apart
(C) Density is higher than average
(D) Medium disappears

Correct Answer: C

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Question (49)

QN005961

Which statement about rarefactions is correct?

(A) Density is maximum
(B) Particles are closer together
(C) Density is lower than average
(D) Pressure becomes infinite

Correct Answer: C

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Question (41)

Which property of sound is demonstrated by hearing a tuning fork in different orientations?

Explanation:

Link:

Question (42)

A medium is essential for propagation of

Explanation:

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Question (43)

Which example best demonstrates propagation of sound through liquids?

Explanation:

Link:

Question (44)

If the speed of sound in air is 340 m/s, how long will it take to travel 850 m?

Explanation:

Link:

Question (45)

Sound travels 5000 m through steel in 1 s. The speed is

Explanation:

Link:

Question (46)

Which phenomenon proves that sound carries energy through a medium?

Explanation:

Link:

Question (47)

The motion of particles during sound propagation is best described as

Explanation:

Link:

Question (48)

Which statement about compressions is correct?

Explanation:

Link:

Question (49)

Which statement about rarefactions is correct?

Explanation:

Link:

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