Which of the following statement is not correct

Photographic plates are sensitive to infrared rays

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Photographic plates are sensitive to ultraviolet rays

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Infra-red rays are invisible but can cast shadows like visible light

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Infrared photons have more energy than photons of visible light

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Solution

The correct option is D
Infrared photons have more energy than photons of visible light

$E \propto \frac{1}{λ}$ ; also $λ_{i n f r a r e d} > λ_{v i s i b l e}$ so $E_{i n f r a r e d} < E_{v i s i b l e}$

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Similar questions

State the approximate range of wavelength associated with (a) the ultraviolet rays , (b) the visible light , and (c) infrared rays.

γ

The order in which the rays in the electromagnetic spectrum are arranged is:-

Infrared rays - X rays - Radiowaves - Microwaves - Gamma rays - UV rays - Visible

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