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The resolving power of a telescope is gi...

The resolving power of a telescope is given by

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The resolving power of a telescope is defined as the reciprocal of the angular limit of resolution between two closely- spaced distant objects so that they are just resolved when seen through the telescope .
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A: The resolving power of a telescope decreases on decreasing the aperture of its objective lens. R: The resolving power of a telescope is given as D/(1.22 lamda) where D is aperture of the objective and lamda is the wavelength of light.

Assertion (A) To increase resolving power of a telescope, the aperture (a) of the object should be large. Reason (R ) Resolving power of the telescope is given by (2a)/(1.22lambda) .

When the object is self-luminous, the resolving power of a microscope is given by the expression

Assertion : The resolving power of a telescope is more if the diameter of the objective lens is more. Reason : Objective lens of large diameter collects more light.

Assertion : The resolving power of a telescope is more if the diameter of the objective lens is more. Reason : Objective lens of large diameter collectd more light.

Resolving power of a microscope is given by

The resolving power of a telescope whose lens has a diameter of 1.22 m for a wavelength of 5000 Å is