1.

(a) Write the factors by which the resolving power of a telescope can be increased. (b) Estimate the angular separation between first-order maximum and third-order minimum of the diffraction pattern due to a single slit of width 1mm, when light of wavelength 600 nm is incident normal on it.

Answer»

SOLUTION :Resolving power = `D/(1.22 lambda) = (Dv)/(1.22 c)`
For LIGHT of given frequecy, resolving power can be increased by increasing diameter of objective LENS.


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