Question

A) Under what condition do the cones get activated???

B) No image is formed at the junction of the optic nerve and the retina. Why???

C) How is self adjustment of the size of the pupil helpful??? ​

Answer 1

Answer:

$hey dear ,$

A - cones, are photoreceptor cells in the retinas of vertebrate eyes (e.g. the human eye).

They respond differently to light of different wavelengths, and are thus responsible for color vision and function best in relatively bright light, as opposed to rod cells, which work better in dim light.

B -

in attachment ‼️ .

C -

self-adjustment

property -

eye adjusts the focal length of the eye lens according to the position of the object since it needs to create a distinct image. The pupil of the eye regulates the entry of light into the retina.

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Answer 2

a) Cones get activated in bright light ✅

b) as it is insensitive to light ✅

c) It not only protects the interior of the eye from

excessive brightness but also help to improve the

image forming ability ✅