# NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 1057 - 1062 of 1484

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## Question number: 1057

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MCQ▾

### Question

What is the angle of the reflection in following figure? Reflection of Light In figure reflection of light from plane mirror is shown.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 1058

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MCQ▾

### Question

The distance from the focal point to the centre of the lens, is called:

### Choices

Choice (4) Response

a.

Image distance

b.

Focal length

c.

d.

All of the above

## Question number: 1059

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MCQ▾

### Question

The speed of light in a medium is . The refractive index of the medium is:

### Choices

Choice (4) Response

a.

1.5

b.

1

c.

1.33

d.

1.75

## Question number: 1060

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MCQ▾

### Question

The object distance and image distance are and , respectively, measured for an experiment. The lens using for this experiment is converging lens. The focal length of this converging is:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 1061

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MCQ▾

### Question

If the object distance of a converging lens is and the image distance is . If the height of the object is , then the magnitude of height of the image is:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 1062

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MCQ▾

### Question

A ray of light is travels from air to water as shown in below figure. A Light Travels from Water to Air In figure a light travels from water to air is shown.

The refractive indexes of the water and air are and respectively. Find angle of incident ray approximately.

### Choices

Choice (4) Response

a.

b.

c.

d.

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