Multiple Choice Question XXVIII — task. Science CBSE, Class 10.

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1. The relationship between focal length f and the power of lens is

\(f\ =\ \frac{1}{P}\)
\(f\ =\ P\)
\(f\ =\ 2P\)
\(\frac{1}{f}\ =\ \frac{1}{P}\)

2. According to Rayleigh’s scattering, less is the wavelength -

More is the scattering
Less is the scattering
Moderate is the scattering
None is the scattering

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