NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1041 - 1045 of 1484

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Question 1041

Question

MCQ▾

Converging lens is use to produced image in a camera. If the focal length of the lens is , then what could be object distance of the lens, approximately?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 1042

Question

MCQ▾

A ray incidents from air to surface of a medium. The angle of incident is and refractive index of the air is . If the angle of refraction is , then find the refractive index of medium.

Choices

Choice (4)Response

a.

b.

c.

2

d.

Question 1043

Question

MCQ▾

Which of the following physical quantity remains same, when light travels through one medium to another medium?

Choices

Choice (4)Response

a.

Intensity

b.

Wavelength

c.

Speed

d.

Frequency

Question 1044

Question

MCQ▾

Observe the following figure.

A Light Passing through Glass Slab

Figure shows, the light ray is passing through a glass slab. Which ray is emergent ray?

Choices

Choice (4)Response

a.

OP

b.

NO

c.

MN

d.

There is no emergent ray

Question 1045

Question

MCQ▾

If we formed an image by a convex lens, and after that we changed lens by another thin lens, then which of the following does not affect?

Choices

Choice (4)Response

a.

Refractive index of lens

b.

Image distance

c.

Thickness of lens

d.

Object distance

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