Questions  

A brilliant arc lamp delivers a luminous flux of 100 W to a 1 m2 absorber. The force due to radiation pressure is

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By Expert Faculty of Sri Chaitanya
ctaimg
a
3.3×10−4N
b
16.5×10−7N
c
3.3×10−6N
d
3.3×10−7N
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detailed solution

Correct option is D

Radiation pressure = I/C = PIt area is 1m2      F = PF=1003×108=3.3×10−7N

ctaimg

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