CUET · PHYSICS · PYQ PAPER 2025
According to Rayleigh's law, the intensity of scattered light varies with wavelength \( \lambda \) as
- A \( \propto \lambda^4 \)
- B \( \propto \frac{1}{\lambda^4} \)
- C \( \propto \lambda^2 \)
- D \( \propto \frac{1}{\lambda^2} \)
Answer & Solution
Correct Answer
(B) \( \propto \frac{1}{\lambda^4} \)
Step-by-step Solution
Detailed explanation
According to Rayleigh's Law of Scattering, the intensity ( \(I\) ) of scattered light is inversely proportional to the fourth power of its wavelength ( \(\lambda\) ), provided the scattering particles are much smaller than the wavelength of light. Mathematically, this is…
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