NCERT Based General Studies (GS): Questions 3014 - 3019 of 4879

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Question 3014

Question MCQ▾

Insufficient light causes

Choices

Choice (4)Response

a.

Eye dis order

b.

Eyestrain

c.

Headache

d.

Question does not provide sufficient data or is vague

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Question 3015

Question MCQ▾

Non-optical aids include:

Choices

Choice (4)Response

a.

Auditory aids

AND

Electronic aids

b.

Visual aids

c.

Touch or tactual aids

d.

All a., b. and c. are correct

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Question 3016

Question MCQ▾

Dispersion is defined as:

Choices

Choice (4)Response

a.

No of reflections taking place together

b.

Splitting of light into its constituent colours

c.

Right left reversal of image by a plane mirror

d.

None of the above

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Question 3017

Question MCQ▾

Laws of reflection are:

Choices

Choice (4)Response

a.

The incident ray, the reflected ray and the normal at the point of incidence all lie in the same plane

b.

The angle of incidence (i) is equal to the angle of reflection (r)

c.

Both a. and b. are correct

d.

None of the above

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Question 3018

Question MCQ▾

Angle of reflection is defined as:

Choices

Choice (4)Response

a.

Angle between the incident ray and reflected ray

b.

The angle which the incident ray makes with the normal

c.

The angle which reflected ray makes with the normal

d.

All of the above

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Question 3019

Question MCQ▾

The essential parts of the eye are:

Choices

Choice (4)Response

a.

Eye lens, Retina, Rods and cones

b.

Cornea, Iris, Retina, Rods and cones

c.

Blind spot

d.

All of the above

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