Question

Choose the correct answer

Answer 1

Heyaa folk,.

40 => D ) Cannot see nearby objects clearly and distinctly.

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41 => 2) Dispersion.
When a white beam passes through a prism it splits and this process is known as dispersion.

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Hope this helps ya!!!

Answer 2

#40. Hypermetropia is a defects where a person can see distant objects clearly,but cannot see nearby objects distinctly .

 Option ⇒ (1)

Hypermetropia is generally seen among old age people,Hypermetropia is caused when the curvature of cornea is not proper,or defects in the placement of lens.

In this case image is formed behind the retina. [pic(1.)]

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#41. White light split into 7 colours due to dispersion. [pic(2)] Option ⇒(2)

Dispersion occur due to difference in the extent of refraction by each monochromatic light.

Red light refract(bend) the least,whereas violet light refract(bend)the most.