MEDIUM
10th CBSE
IMPORTANT
Earn 100

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Name the phenomenon responsible for change in the path of rays.

Important Questions on Light Reflection and Refraction

MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 1 - Light Reflection and Refraction>EXERCISES>Q 4
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Identify the device X in the given diagram.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 1 - Light Reflection and Refraction>EXERCISES>Q 4
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In the given diagram, what is point A called?
HARD
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 1 - Light Reflection and Refraction>EXERCISES>Q 4
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In the given diagram, which physical quantity does the reciprocal of the distance, between the device X and the point A, denote?
HARD
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 1 - Light Reflection and Refraction>EXERCISES>Q 4
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In the given diagram, write SI unit of the quantity denoted by the reciprocal of the distance between the device X and the point A.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 1 - Light Reflection and Refraction>EXERCISES>Q 5
A lens X has focal length 20 cm and lens Y has focal length 40 cm. Which lens would you select to obtain a more convergent beam of light and why?
HARD
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 1 - Light Reflection and Refraction>EXERCISES>Q 5
The lower half of a convex lens is painted black, as shown. How will the intensity of the image be affected?
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EASY
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 1 - Light Reflection and Refraction>EXERCISES>Q 5

The following table gives values of refractive indices of a few media:

  1 2 3 4 5 6
Medium Ice Water Kerosene Flint glass Ruby diamond
Refractive index 1.31 1.333 1.44 1.66 1.71 2.42

Name the medium having the highest optical density and that having the lowest optical density.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 1 - Light Reflection and Refraction>EXERCISES>Q 5
Why does a light ray striking a surface of a medium having different refractive index bend?