Physics-Light (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 8 - 12 of 31

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Question number: 8

» Physics » Light

MCQ▾

Question

In the figure, an air lens is cut in a cylinder of glass of refractive index 1.5. The nature of the lens is

An air lens cut in cylinder of glass

An Air Lens Cut in Cylinder of Glass

Find the Nature of the lens which is cut in a cylinder of glass.

Choices

Choice (4) Response

a.

diverging

b.

neither diverging nor converging

c.

converging

d.

Question does not provide sufficient data or is vague

Question number: 9

» Physics » Light

MCQ▾

Question

An object is placed at a distance of 30 cm from a concave mirror and its real image is formed at a distance of 30 cm from the mirror. The focal length of the mirror is

Choices

Choice (4) Response

a.

15 cm

b.

30 cm

c.

20 cm

d.

45 cm

Question number: 10

» Physics » Light

MCQ▾

Question

Two thin lenses of focal lengths f 1 and f 2 are placed in contact. The focal length of the composite lenses will be

Choices

Choice (4) Response

a.

f1f2

b.

f1f2f1+f2

c.

f1+f2f1f2

d.

f1+f22

Question number: 11

» Physics » Light

MCQ▾

Question

Figure shows when the as shown two rays A and B being reflected by a mirror and going as A’ and B’. The mirror is

Two rays reflected by the mirror

Two Rays Reflected by the Mirror

Find the type of mirror by using reflected rays

Choices

Choice (4) Response

a.

may be any spherical mirror

b.

is plane

c.

is concave

d.

is convex

Question number: 12

» Physics » Light

MCQ▾

Question

Image is formed for the short sighted person at

Choices

Choice (4) Response

a.

image is not formed at all

b.

behind the retina

c.

retina

d.

before retina

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