A light beam is travelling in an isotropic absorbing medium, and it is found that after travelling a distance of 15 cm in the medium, the light intensity has reduced to one-quarter of the incident intensity. Calculate the absorption coefficient a of the medium.
A light beam is travelling in an isotropic absorbing medium, and it is found that after travelling a distance of 15 cm in the medium, the light intensity has reduced to one-quarter of the incident intensity. Calculate the absorption coefficient a of the medium.
Question
Transcribed Image Text:A light beam is travelling in an isotropic absorbing medium, and it is found that after travelling a
distance of 15 cm in the medium, the light intensity has reduced to one-quarter of the incident
intensity.
Calculate the absorption coefficient a of the medium.
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