EASY
10th CBSE
IMPORTANT
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Define power of a lens and write its SI units.

Important Questions on Light : Reflection and Refraction

EASY
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 1 - Light : Reflection and Refraction>Assignment-3>Q 2
What is the nature of a lens having focal length +20 cm?
EASY
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 1 - Light : Reflection and Refraction>Assignment-3>Q 3
Write relation between u,v and f for lens.
EASY
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 1 - Light : Reflection and Refraction>Assignment-3>Q 4
A lens has a power of -6D. It is a concave or a convex lens.
EASY
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 1 - Light : Reflection and Refraction>Assignment-3>Q 5
Write the relation between height of the object (h) , height of image(h'), object distance (u) and image distance (v) for a lens.
MEDIUM
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 1 - Light : Reflection and Refraction>Assignment-3>Q 6
At which position of object will the magnification be -1 in case of (a) convex lens (b) concave mirror.
EASY
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 1 - Light : Reflection and Refraction>Assignment-3>Q 7

Draw the given diagram in your answer book and complete it for the path of ray of light beyond the lens.

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EASY
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 1 - Light : Reflection and Refraction>Assignment-3>Q 8

Draw the given diagram in your answer book and complete it for the path of light beyond the lens.
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EASY
10th CBSE
IMPORTANT
ESSENTIALS OF PHYSICS CLASS X>Chapter 1 - Light : Reflection and Refraction>Assignment-3>Q 9
Refractive index of two material mediums X and Y are 1.3 and 1.5 respectively. In which of the two, the light would travel faster?