Question

(15) Chemistry (10) Mathematic... (30) English (5)
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Q10. When a source of sound is in motion towards a stationary observer, the effect observed is
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O (A) decrease in the velocity of sound.
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(B) decrease in the frequency of sound.
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(C) increase in the velocity of sound.
(D) increase in the frequency of sound.
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Answer 1

Answer:

option B is correct

Explanation:

option B is correct