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  • Use the formula lambda T is equal to 0.29 cmK to obtain the characteristic temperature ranges for different parts of the electromagnetic spectrum. What do the numbers that you obtain tell you?

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)

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

Posted by

Safeer PP

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