EASY
10th CBSE
IMPORTANT
Earn 100

Study the ray diagram and answer the questions.
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List two properties of image formed.

Important Questions on Light Reflection and Refraction

MEDIUM
10th CBSE
IMPORTANT
Study the ray diagram and answer the questions.
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For what position of object will magnification be 1?
MEDIUM
10th CBSE
IMPORTANT

The following table gives the values of refractive indices of a few media.

  1 2 3 4 5
Medium Water Crown glass Rock salt Ruby Diamond
Refractive index 1.33 1.52 1.54 1.71 2.42

Use this table to give an example of a medium pair so that light speeds up when it goes from one of these media to another.
MEDIUM
10th CBSE
IMPORTANT
The following table gives the values of refractive indices of a few media.
  1 2 3 4 5
Medium Water Crown glass Rock salt Ruby Diamond
Refractive index 1.33 1.52 1.54 1.71 2.42

Use this table to give an example of a medium pair so that light slows down when it goes from one of these media to another.
MEDIUM
10th CBSE
IMPORTANT

The path of a light ray, from air to three different media (a), (b), and (c), for a given angle of incidence, is as shown. Study the diagram carefully and answer the following questions.


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Which of the three media (a), (b) or (c) has maximum optical density?

MEDIUM
10th CBSE
IMPORTANT

The path of a light ray, from air to three different media (a), (b), and (c), for a given angle of incidence, is as shown. Study the diagram carefully and answer the following questions.

(a)

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(b)

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(c)

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Through which of the three media, will the speed of light be maximum?

MEDIUM
10th CBSE
IMPORTANT

The path of a light ray, from air to three different media (a), (b), and (c), for a given angle of incidence, is as shown. Study the diagram carefully and answer the following questions.

a)

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b)

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c)

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If na, nb, and nc, denote refractive indices of the three media, arrange na, nband nc, in descending order?

MEDIUM
10th CBSE
IMPORTANT
Define refraction of light. How is refraction caused? Give three examples of phenomena in daily life, which occur due to refraction of light.
MEDIUM
10th CBSE
IMPORTANT
A convex lens forms a real image 4 times magnified at a distance of 60 cm from the lens. Calculate the focal length and power of the lens. Draw ray diagram also, to represent this situation.