E M B I B E

Physical Science Class 10>Chapter 4 - Refraction of Light at Curved Surfaces>Improve your learning>Q 4)

EASY

10th Telangana Board

IMPORTANT

Earn 100

Figure shows ray AB that has passed through a divergent lens. Construct the path of the ray up to the lens if the position of its foci is known.

Important Questions on Refraction of Light at Curved Surfaces

MEDIUM

10th Telangana Board

IMPORTANT

Physical Science Class 10>Chapter 4 - Refraction of Light at Curved Surfaces>Improve your learning>Q 5)

Figure shows a point light source and its image produced by a lens with an optical axis $N_{1} N_{2}$ . Find the position of the lens and its foci using a ray diagram.

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MEDIUM

10th Telangana Board

IMPORTANT

Physical Science Class 10>Chapter 4 - Refraction of Light at Curved Surfaces>Improve your learning>Q 6)

Find the focus by drawing a ray diagram using the position of source S and the image S' given in the figure.

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HARD

10th Telangana Board

IMPORTANT

Physical Science Class 10>Chapter 4 - Refraction of Light at Curved Surfaces>Improve your learning>Q 7)

A parallel beam of rays is incident on a convergent lens with a focal length of

40 cm

. Where a divergent lens with a focal length of

15 cm

should be placed for the beam of rays to remain parallel after passing through the two lenses? Draw a ray diagram.

HARD

10th Telangana Board

IMPORTANT

Physical Science Class 10>Chapter 4 - Refraction of Light at Curved Surfaces>Improve your learning>Q 8)

The distance between two point sources of light is

24 cm

.Where should a convergent lens with a focal length of

f = 9 cm

be placed between them to obtain the images of both sources at the same point?

EASY

10th Telangana Board

IMPORTANT

Physical Science Class 10>Chapter 4 - Refraction of Light at Curved Surfaces>Improve your learning>Q 9)

Suppose you are inside the water in a swimming pool near an edge. A friend is standing on the edge. Do you find your friend taller or shorter than his usual height? Why?

EASY

10th Telangana Board

IMPORTANT

Physical Science Class 10>Chapter 4 - Refraction of Light at Curved Surfaces>Improve your learning>Q 1)

Which one of the following materials cannot be used to make a lens?

MEDIUM

10th Telangana Board

IMPORTANT

Physical Science Class 10>Chapter 4 - Refraction of Light at Curved Surfaces>Improve your learning>Q 2)

Which of the following is true?

EASY

10th Telangana Board