Question

2.
A sings with a frequency (n) and B sings with a frequenta
(1/8) that of A. If the energy remains the same and
amplitude of A is a then amplitude of Bis:
(a) a (b) 2a (c) 8a (d) 16a​

Answer 1

The amplitude of B is 8a.

nA = n (Given)

nB = n/8 (Given)

E = 1/2mv²,

v = Amplitude × Angular velocity

v = aω

Therefore,

= 1/2ma²ω²

Also, as ω = 2πn

As Ea = Eb

(aA/aB)² = ( nA/nB)²

(aA/aB)² = ( n/8/n)

= 1/8

= aB = 8aA = 8a

Therefore, the amplitude of B is 8a.

Answer 2

Answer:

8a

Explanation:

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