Tag: option c: imaging

Questions Related to option c: imaging

The focal length of objective and eye-piece of a telescope are $200\ cm$ and $5\ cm$ respectively. Final image is formed at least distance of distinct vision. The magnification of telescope is

  1. $20$

  2. $24$

  3. $30$

  4. $48$


Correct Option: D

The whitish part of eye mainly:

  1. provides characteristic colour to the eye

  2. acts as protective layer for the eye

  3. regulates the amount of light entering into the eye

  4. perceives the sensations


Correct Option: B
Explanation:

Whitish part of eye is tough so that it can protect the eye from injuries.

It is white and transparent coat, known as cornea.