MCQ
Which of the following statement is not correct
  • A
    Photographic plates are sensitive to infrared rays
  • B
    Photographic plates are sensitive to ultraviolet rays
  • C
    Infra$-$red rays are invisible but can cast shadows like visible light
  • Infrared photons have more energy than photons of visible light

Answer

Correct option: D.
Infrared photons have more energy than photons of visible light
$E \propto \frac{1}{\lambda}$; also $\lambda_{\text {infrared }}>\lambda_{\text {visible }}$
so $E_{\text {infrared }}$

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