Biomedical Engineering > GATE 2023 > Wave Propagation
A circular disc of radius R (in cm) has a uniform absorption coefficient of 1 cm⁻¹. Consider a single ray passing through the disc in the plane of the disc. The shortest distance from the center of the disc to the ray is t (in cm). If Ii is the intensity of the incident ray and I0 is the intensity of the transmitted ray, then log(Ii/I0) is given by
A
2√(R2-t2)
B
2R
C
1
D
2√(R-t)

Correct : a

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