Question

Which of the following statements is not correct?
A. Photographic plates are sensitive to infrared rays
B. Photographic plates are sensitive to infrared rays
C. Infra - red rays are invisible but can cast shadows like visible light
D. Infrared photons have more energy than photons of visible light

Answer 1

Correct Answer - B
`E prop (1)/(lambda)` also `lambda_( "in frared") gt lambda_(" visible")` so `E_("in frared") lt E_("visible")`