Physics: Sound exits a diffraction horn loudspeaker through a rectangular opening like a small doorway. such a loudspeaker is mounted outside on a pole. in winter, when the temperature is 273 k, the diffraction angle θ has a value of 19.5°. what is the diffraction angle for the same sound on a summer day when the temperature is 313 k?

Sound exits a diffraction horn loudspeaker through

Ответ:

joe6076

11.01.2022

Physics

$\theta = 20.98 degree$

Explanation:

As we know that the speed of the sound is given as

v = 332 + 0.6 t

now at t = 273 k = 0 degree

v = 332 m/s

so we have

$a sin\theta = N\lambda$

$a sin\theta = N(\frac{v_1}{f})$

now when temperature is changed to 313 K we have

t = 313 - 273 = 40 degree

now we have

v = 332 + (0.6)(40)

v_2 = 356 m/s

$a sin\theta' = N(\frac{v_2}{f})$

now from two equations we have

$\frac{sin19.5}{sin\theta} = \frac{332}{356}$

so we have

$sin\theta = 0.358$

$\theta = 20.98 degree$

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Ответ:

lifeofabe214

05.07.2021

Physics

Agree. But only people who are social and would like to participate should get called on. People with anxiety/ social anxiety may not like that idea so much.

Explanation:

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