First slide

Electromagnetic spectrum

Question

The wavelength of infrared rays is of the order of

Easy

A

$5 \times 10^{- 7} m$
B

$10^{- 3} m$
C

between (1) and (2)
D

none of these

Solution

$λ$ for infrared rays lies between $5 \times 10^{- 7} m and 10^{- 3} m .$

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