AP EAMCET · PHYSICS · Dual Nature of Matter
A lamp delivers a luminous flux of \(100 \mathrm{~W}\) to an absorber of area \(\mathrm{l} \mathrm{cm}^2\). The force due to radiation pressure is
- A \(3.3 \times 10^{-4} \mathrm{~N}\)
- B \(16.5 \times 10^{-7} \mathrm{~N}\)
- C \(3.3 \times 10^{-6} \mathrm{~N}\)
- D \(3.3 \times 10^{-7} \mathrm{~N}\)
Answer & Solution
Correct Answer
(D) \(3.3 \times 10^{-7} \mathrm{~N}\)
Step-by-step Solution
Detailed explanation
\(\because\) Force \(=\) Rate of change of linear momentum \[ F=\frac{d p}{d t}=\frac{d}{d t}\left(\frac{v}{c}\right)=\frac{1}{c} \frac{d v}{d t} \] where, \(v=\) electromagnetic wave energy.…
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