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vladimir1956 [14]
3 years ago
15

A wave of infrared light has a speed of 6m/s and a wave length of 12 m. What is the frequency of this wave?

Physics
1 answer:
erastovalidia [21]3 years ago
6 0
Frequency = speed / wavelength

(6 m/s) / (12 m) = 0.5 Hz.

That's not infrared light.
Infrared light waves move about 50 million times faster than that, and they're only about 0.00000007 as long as that.
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The lowest-pitch tone to resonate in a pipe of length L that is closed at one end and open at the other end is 200 Hz. Which one
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Answer:

e. 400 Hz

Explanation:

In closed organ pipe,  only odd harmonics of fundamental note is possible .

The fundamental frequency is 200 Hz . Then other overtones will be having following frequencies .

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2 years ago
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