Biology - Mock Test 6

Question 51

Forward stereoscopic Visual field will be the greatest in

A) Rabbit B) Cat C) Horse D) Deer

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Question 52

The eye lens is

A) Concave B) Convex C) Biconcave D) Biconvex

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Question 53

The persistence of vision for human eye is

A) 1/ 6th of a second B) 1/10th of a second C) 1/16th of a second D) 1/18th of a second

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Question 54

Greatest refraction of light is caused through

A) iris B) pupil C) choroid coat D) sclerotic coat

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Question 55

What does the tapetum lucidum do

A) it is the colored part of the eye B) gives animals night vision C) transparent jelly-like fluid D) it is the area where the optic never attaches

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Question 56

The innermost layer and the most delicate layer of the eyeball where the photoreceptors are located are

A) Choroid B) Sclera C) Cornea D) Retina

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Question 57

This part of the eye dilates and contracts based on the environment

A) Sclera B) Cornea C) Lens D) Pupil

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Question 58

The transparent lens in the human eye is held in its place by

A) smooth muscles attached to the iris B) ligaments attached to the ciliary body C) ligaments attached to the iris D) smooth muscles attached to the ciliary body

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Question 59

which of these colour is least scattered by dust, fog, smoke

A) Yellow B) Red C) Blue D) Violet

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Question 60

The light-sensitive cells present on the retina and sensitive to the light intensity is

A) Rods B) Cones C) A and B both D) None of the above

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