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science

Grade-4-

Easy

Question

When we increase the wavelength of a wave, the frequency

Increases
Decreases
Remains constant
Becomes zero

hint Hint:

Frequency and wavelength are inversely proportional.

The correct answer is: Decreases

Frequency= Wave velocity/wavelength

Frequency and wavelength are inversely proportional.

Therefore, increasing the wavelength decreases it's frequency.

So, the correct option is b.

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