Which amplitude of the following longitudinal waves has the greatest energy? amplitude = 10 cm; wavelength = 6 cm; period = 4 seconds amplitude = 6 cm; wavelength = 4 cm; period …

Question

asked Aug 25, 2017 71.2k views

2 Answers

Avicohen · Answer 1 · 2017-08-28T09:19:50+0000

Which amplitude of the following longitudinal waves has the greatest energy?

amplitude = 10 cm; wavelength = 6 cm; period = 4 seconds

Sharath · Answer 2 · 2017-09-01T05:46:52+0000

Answer: A longitudinal wave has the greatest energy for amplitude 10 cm.

Explanation:

We know that,

The energy is directly proportional to the square of the amplitude.

$E \propto a^2$

(I). Amplitude = 10

then, the energy will be

E = 100

(II). Amplitude = 6

then, the energy will be

E = 36

(II). Amplitude = 4

then, the energy will be

E = 16

Hence, A longitudinal wave has the greatest energy for amplitude 10 cm.