8.13) Use the formula \lambda _m T = 0.29 cm K to obtain the characteristic
temperature ranges for different parts of the electromagnetic
spectrum. What do the numbers that you obtain tell you?

Answers (1)
S safeer
EM wave one wavelength is taken from the range Temperature T=\frac{0.29}{\lambda}

Radio

100 cm 2.9\times 10^{-3}K

Microwave

0.1cm 2.9 K

Infra-red

100000ncm 2900K

Light

50000 ncm 5800K

Ultraviolet

100ncm 2.9\times10^{6}K

X-rays

1 ncm 2.9\times10^8K

Gamma rays

0.01 nm 2.9\times10^{10}K

 

These numbers indicate the temperature ranges required for obtaining radiations in different parts of the spectrum

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