Question

Consider a beam of monochromatic radiation at wavelength λ that enters a layer of absorbing gas. As the beam passes through the gas layer, its intensity

a.

Decreases

b.

Increases

c.

Become twice

d.

Remains same

Posted under Heat Transfer

Answer: (a).Decreases

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Q. Consider a beam of monochromatic radiation at wavelength λ that enters a layer of absorbing gas. As the beam passes through the gas layer, its intensity
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