3 years ago

Which of the following devices is used in this experiment to separate the different wavelengths emitted by the light source?

Physics

1 answer:

adelina 88 [10]3 years ago

7 0

Answer:

A. Prism

Explanation:

In the experiment we are able to isolate different wavelengths by shining the light through a prism, which separates the different wavelengths through refraction.

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Two speakers, one directly behind the other, are each generating a 280-Hz sound wave. What is the smallest separation distance b

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Answer:

1.21m

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If two speakers are generating a frequency of 280Hz, the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them is also known as the wavelength of the sound wave generated.

Using the expression;

Velocity v = frequency f × wavelength ¶

Given frequency = 280Hz, speed of sound v = 338m/s

Substituting this data's in the expression given to get the wavelength will give;

¶ = v/f

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