Question

Resolving power of a telescope depends only on wavelength. This is proportional to square of wavelength.

• A. If both assertion and reason are true and reason is the correct explanation of assertion.
• B. If both assertion and reason are true but reason is not the correct explanation of assertion.
• C. If assertion is true but reason is false.
• D. If both assertion and reason are false.

Answer 1

Answer: (D)

If both assertion and reason are false.

Answer 2

The resolving power of a telescope depends on a diameter of the telescope's light-gathering appratus, or objective lens is the first lens the light passes through. Resolution $=\frac{\text { Wavelength }(\lambda)}{\text { Diameter }(D)}$