Physics-Light (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 13 - 18 of 31

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Question number: 13

» Physics » Light

MCQ▾

Question

A prism can have a maximum refracting angle of

Choices

Choice (4) Response

a.

2 c

b.

slightly less than 180°

c.

c

d.

60°

Question number: 14

» Physics » Light

MCQ▾

Question

The image formed on the retina of a human eye is

Choices

Choice (4) Response

a.

virtual and erect

b.

real and inverted

c.

virtual and inverted

d.

real and erect

Question number: 15

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MCQ▾

Question

When the power of eye lens increases, the defect of vision is produced. The defect is known as

Choices

Choice (4) Response

a.

color blindness

b.

short sightedness

c.

long sightedness

d.

All of the above

Question number: 16

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MCQ▾

Question

On burning an element in air, forms an oxide. On dissolving this oxide in H2O it forms an oxyacid. This oxide is a very good dehydrating agent and on reacting with caustic soda, it forms salt but no salt-formation takes place with H2SO4 . The oxyacid of the element is

Choices

Choice (4) Response

a.

boric acid

b.

hypo phosphorus acid

c.

phosphoric acid

d.

phosphorus acid

Question number: 17

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MCQ▾

Question

A person standing in front of a mirror finds his image thinner but with normal height. The mirror is

Choices

Choice (4) Response

a.

concave and spherical

b.

convex and spherical

c.

convex and cylindrical with horizontal axis

d.

convex and cylindrical with vertical axis

Question number: 18

» Physics » Light

MCQ▾

Question

To get three images of a single object, one should have two plane mirrors at an angle of

Choices

Choice (4) Response

a.

30°

b.

60°

c.

90°

d.

150°

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