NSO Level 1- Science Olympiad (SOF) Class 10: Questions 51 - 56 of 1497

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Question 51

Question MCQ▾

If power of a lens is , then radius of the curvature of the lens is:

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 52

Question MCQ▾

By which of the following mirror we can get long and thin image?

Choices

Choice (4)Response

a.

Cylindrical mirror

b.

Concave mirror

c.

Parabolic mirror

d.

Convex mirror

Edit

Question 53

Question MCQ▾

If an object is placed between focal point and centre of curvature of converging lens, then characteristics of its image will be:

Choices

Choice (4)Response

a.

Real, inverting, diminished

b.

Virtual, upright, diminished

c.

Virtual, upright, enlarged

d.

Real, inverting, enlarged

Edit

Question 54

Question MCQ▾

In an optical instrument, if we replaced lens having focal length of the lens becomes times than original lens, then its power of the instrument is charged by factor:

Choices

Choice (4)Response

a.

b.

3

c.

6

d.

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Question 55

Question MCQ▾

A converging lens has a focal length of . If an object is placed from the centre of lens, then image is:

Choices

Choice (4)Response

a.

Real, Erect, Enlarged

b.

Real, Inverted, Diminished

c.

Real, Erect, Same height

d.

Virtual, Inverted, Same height

Edit

Question 56

Question MCQ▾

Which of the following mirror is used for focusing light?

Choices

Choice (4)Response

a.

Concave

b.

Convex

c.

Plane mirror

d.

Plane-convex mirror

Edit