1.

Which of the following statement is wrong       [NCERT 1976]

A.            Infrared photon has more energy than the photon of visible light
B.            Photographic plates are sensitive to ultraviolet rays
C.            Photographic plates can be made sensitive to infrared rays
D.            Infrared rays are invisible but can cast shadows like visible light rays
Answer» B.            Photographic plates are sensitive to ultraviolet rays


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