Optics Question 269

Question: Pick out the longest wavelength from the following types of radiations

[CBSE PMT 1990]

Options:

A) Blue light

B) g-rays

C) X-rays

D) Red light

Show Answer

Answer:

Correct Answer: D

Solution:

$ {\lambda _{Red}}>{\lambda _{Blue}}>{\lambda _{X-ray}}>{\lambda _{\gamma }} $



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