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A ring of radius 3 cm has a soap film which is getting evaporated. Light of wavelength \(\lambda=580 \mathrm{~nm}\) give…

Q1

A ring of radius 3 cm has a soap film which is getting evaporated. Light of wavelength \(\lambda=580 \mathrm{~nm}\) gives minimum transmission every 12 s . Find the rate of evaporation. (Refractive index=1.45)(Shift - II Memory Based)

a

\(\begin{aligned}& 1.5 \pi \times 10^{-13} \mathrm{~m}^3 / \mathrm{s}\end{aligned}\)

b

\(\begin{aligned}& 15 \pi \times 10^{-12} \mathrm{~m}^3 / \mathrm{s}\end{aligned}\)

c

\(\begin{aligned}& 3 \pi \times 10^{-13} \mathrm{~m}^3 / \mathrm{s}\end{aligned}\)

d

\(\begin{aligned}& 3 \pi \times 10^{-12} \mathrm{~m}^3 / \mathrm{s}\end{aligned}\)

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