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Which of the following statements is wro...

Which of the following statements is wrong?

A

Ultraviolet rays have a wavelength longer than infra-red rays.

B

Infra - red rays travel with the same velocity as visible light.

C

Inrfra-red can be focussed by a lens and can e reflected by a mirror just as visible light.

D

Infra-red rays have more heating power than visible light rays.

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