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Standard X

Physics

Structure of Eye

Match the col...

Question

Match the columns
i. amount of light entering into eye controlled by a. rodes
ii. colour sensing cells b. cones
iii.cells helping in vision in dim light c. iris
iv. junction of optic nerve and retina d. blindspot

i-a,ii-b,iii-c,iv-d

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i-d,ii-c,iii-b-iv-a

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i-c,ii-b,iii-a,iv-d

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i-b,ii-a,iii-c,iv-b

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Solution

The correct option is C i-c,ii-b,iii-a,iv-d
Iris controls the amount of light entering the eye.
Cones are colour sensing cells.
Rode cells help in vision in dim light.
At the junction of optic nerve and retina there are no rodes and cones.No image is formed at this point as it is insensitive to light.This point is called blind spot.

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i. amount of light entering into eye controlled by	a. rodes
ii. colour sensing cells	b. cones
iii.cells helping in vision in dim light	c. iris
iv. junction of optic nerve and retina	d. blindspot

Match the columnsi. amount of light entering into eye controlled bya. rodes ii. colour sensing cells b. conesiii.cells helping in vision in dim lightc. irisiv. junction of optic nerve and retina d. blindspot

Match the columns
i. amount of light entering into eye controlled by a. rodes
ii. colour sensing cells b. cones
iii.cells helping in vision in dim light c. iris
iv. junction of optic nerve and retina d. blindspot