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Which of these statement is false:...

Which of these statement is false:

A

photographic plate is sensitive for infrared rays

B

photographic plate is sensitive for ultraviolet rays.

C

infrared rays are invisible but make shadow like visible light

D

as compared to visible light photon, infrared photon have more energy.

Text Solution

Verified by Experts

The correct Answer is:
D
Here: velocity of electromagnetic waves in free space and wavelength
`v=3xx10^(8) m//s` , `lamda=150m`
Using the relation for the frequency of radio waves is given by
`=(v)/(lamda)=(3xx10^(8))/(150)`
`=2xx10^(6)Hz=2MHz`
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