AP EAMCET · PHYSICS · Dual Nature of Matter
Radiations of intensity \(0.5 \mathrm{Wm}^{-2}\) are striking a metal plate, the pressure on the plate is
- A \(0.166 \times 10^{-8} \mathrm{Nm}^{-2}\)
- B \(0.332 \times 10^{-8} \mathrm{Nm}^{-2}\)
- C \(0.111 \times 10^{-8} \mathrm{Nm}^{-2}\)
- D \(0.083 \times 10^{-8} \mathrm{Nm}^{-2}\)
Answer & Solution
Correct Answer
(A) \(0.166 \times 10^{-8} \mathrm{Nm}^{-2}\)
Step-by-step Solution
Detailed explanation
Intensity of radiation, \(I=0.5 \mathrm{Wm}^{-2}\) Pressure on the plate due to radiation is given by \(p=\frac{I}{c}=\frac{0.5}{3 \times 10^8}=0.166 \times 10^{-8} \mathrm{Nm}^{-2}\)
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