Question

Multiple choice
questions (single option correct)
1.
The frequency of a sound wave is 200 Hz and its wavelength is 1 m. What is the time taken
to cover 1 km.
(A) 5 sec
(B) 10 sec
(C) 20 sec
(D) None of these


Please help me in solving this problem

Answer 1

Answer:

c no is answer

Explanation:

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