The diagram below shows the image of a candle, as formed through refection from a concave mirror, obtained on a screen. How many light rays from the point P on the candle flame can be drawn to the corresponding point on the image P'?

A spherical mirror is a mirror that has the shape of a piece cut out of a spherical surface. There are two types of spherical mirrors: concave mirror and convex mirror. If a hollow sphere is cut into parts and the outer surface of the cut part is painted, then it becomes a mirror with its inner surface as the reflecting surface. This type of mirror is known as a concave mirror. From the object point P, infinitely large number of rays can be drawn in the ray diagram to demonstrate the formation of the image P'.

MEDIUM

10th CBSE

IMPORTANT

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Solar cookers contain a concave mirror. How does the concave mirror help in heating the food?

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Important Questions on Light - Reflection and Refraction

MEDIUM

10th CBSE

IMPORTANT

Science Textbook of Competency Based Questions for Class X>Chapter 10 - Light - Reflection and Refraction>Exercise>Q 4

A mirror magnifies the image of an object by

- 1.5

times. Which of the following is true about the image produced by the mirror?

EASY

10th CBSE

IMPORTANT

Science Textbook of Competency Based Questions for Class X>Chapter 10 - Light - Reflection and Refraction>Exercise>Q 5

The picture shows the path of light as it travels from one medium to another.

Question Image

What is medium 1 and medium 2?

EASY

10th CBSE

IMPORTANT

Science Textbook of Competency Based Questions for Class X>Chapter 10 - Light - Reflection and Refraction>Exercise>Q 6

The power of a lens

(P)

is calculated by the formula:

P = \frac{1}{f}

, where

f

is the focal length of the lens. A lens has a focal length of

- 0.25 m

. Is it a convex lens or a concave lens? Explain your answer.

MEDIUM

10th CBSE

IMPORTANT

Science Textbook of Competency Based Questions for Class X>Chapter 10 - Light - Reflection and Refraction>Exercise>Q 7

Two convex lenses P and Q have focal length

0.50 m

and

0.40 m

respectively. Which of the following is TRUE about the combined power of the two lenses?

MEDIUM

10th CBSE

IMPORTANT

Science Textbook of Competency Based Questions for Class X>Chapter 10 - Light - Reflection and Refraction>Exercise>Q 8

When an incident ray of light enters a medium from the air, it bends towards the normal. Which of the following is TRUE about the refractive index of the medium (

n_{m}

) as compared to the refractive index of air (

n_{a}

HARD

10th CBSE

IMPORTANT

Science Textbook of Competency Based Questions for Class X>Chapter 10 - Light - Reflection and Refraction>Exercise>Q 9

When a lens in placed at Q, a sharp image is formed on the screen. The image formed is real, inverted and diminished. When the lens is moved to P, another sharp image is formed on the screen.

Question Image

What is the nature of the image formed when the lens is at P?

EASY

10th CBSE

IMPORTANT

Science Textbook of Competency Based Questions for Class X>Chapter 10 - Light - Reflection and Refraction>Exercise>Q 11

The diagram below shows the image of a candle, as formed through refection from a concave mirror, obtained on a screen.

Question Image

How many light rays from the point P on the candle flame can be drawn to the corresponding point on the image P'?

EASY

10th CBSE

IMPORTANT

Science Textbook of Competency Based Questions for Class X>Chapter 10 - Light - Reflection and Refraction>Exercise>Q 12

The eyeball of a person has become slightly larger. Which kind of lens should the person wear to correct the defect in the vision caused by this change in size of the eyeball?

Solar cookers contain a concave mirror. How does the concave mirror help in heating the food?

Important Questions on Light - Reflection and Refraction

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