Ray Optics Test...

The diameter of the objective lens of a telescope is 5.0 m and wavelength of light is 6000 Å. The limit of resolution of this telescope will be

All of the following statements are correct except

A terrestrial telescope is made by introducing an erecting lens of focal length f between the objective and eye piece lenses of an astronomical telescope. This causes the length of the telescope tube to increase by an amount equal to

The length of an astronomical telescope for normal vision (relaxed eye) f₀ = focal length of objective lens and f_e = focal length of eye lens) is

A Gallilean telescope has objective and eye-piece of focal lengths 200 cm and 2 cm respectively. The magnifying power of the telescope for normal vision is

The resolving power of a telescope depends on

When diameter of the aperture of the objective of an astronomical telescope is increased, its

The minimum magnifying power of a telescope is M, If the focal length of its eye lens is halved, the magnifying power, will become

The astronomical telescope consists of objective and eyepiece. The focal length of the objective is

Four convergent lenses have focal lengths 100 cm, 10 cm, 4 cm and 0.3 cm. For a telescope with maximum possible magnification, we choose the lenses of focal length