EASY
10th CBSE
IMPORTANT
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AB is the incident ray on a glass slab. The emergent ray is

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Important Questions on Reflection and Refraction

EASY
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>PRACTICE QUESTIONS>Q 21

While tracing the path of a ray of light passing from air through a rectangular glass slab, the setup, in which the best result will be obtained is

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MEDIUM
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>PRACTICE QUESTIONS>Q 22
Which of the following set of materials represents the minimum material required for determining the focal length of a convex lens by obtaining the image of a distant object on a screen in your school laboratory.
(i) Set A - A candle, a match box, a convex lens, a lens holder, a screen with stand.
(ii) Set B - A lens holder, a convex lens, a concave lens, a measuring scale.
(iii) Set C - A convex lens, a lens holder, a screen with a stand, a measuring scale.
(iv) Set D - A convex lens, a burning candle, a screen with stand, a lens holder.
MEDIUM
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>PRACTICE QUESTIONS>Q 23

A student used a device (X) to obtain / focus the image of a well illuminated distant building on a screen (S) as shown in the diagram. Select the correct statement about the device (X).

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MEDIUM
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>PRACTICE QUESTIONS>Q 24
A student has obtained a point image of a distant object using the given convex lens. To find the focal length of the lens, he should measure the distance between the:
MEDIUM
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>PRACTICE QUESTIONS>Q 25
A student obtained a sharp image of a candle flame placed at the distant end of the laboratory table on a screen using a concave mirror to determine its focal length. The teacher suggested him to focus a distant building, about 1 km away from the laboratory, for getting more correct value of the focal length. In order to focus the distant building on the same screen, the student should slightly move the
EASY
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>PRACTICE QUESTIONS>Q 26
To determine the approximate focal length of the given convex lens by focussing a distant object (say, a sign board), you try to focus the image of the object on a screen. The image you obtain on the screen is always
MEDIUM
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>PRACTICE QUESTIONS>Q 27

Select from the following the best experimental setup for tracing the path of a ray of light passing through a rectangular glass slab.

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MEDIUM
10th CBSE
IMPORTANT
Modern's ABC+ Of Science Physics>Chapter 4 - Reflection and Refraction>PRACTICE QUESTIONS>Q 28
The path of a ray of light coming from air passing through a rectangular slab traced by four students are shown by figures A, B, C and D. Which one of them is correct?

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