EASY
10th ICSE
IMPORTANT
Earn 100

Complete following ray diagrams and show image formation.
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Important Questions on Refraction Through a Lens

EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 5 - Refraction Through a Lens>QUESTIONS>Q 1
Define power of a lens.
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 5 - Refraction Through a Lens>QUESTIONS>Q 2
Power of a lens is +2 D. What is the focal length of the lens? Whether it is a convex or a concave lens?
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 5 - Refraction Through a Lens>QUESTIONS>Q 3
A concave lens has a focal length of 25 cm. What is the power of the lens?
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 5 - Refraction Through a Lens>QUESTIONS>Q 4
Two thin lenses of +2.5 D and -0.5 D are put in contact. What is the power, focal length of the combination?
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 5 - Refraction Through a Lens>QUESTIONS>Q 5
What is magnifying glass? Draw a ray diagram to explain the working of a magnifying glass.
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 5 - Refraction Through a Lens>QUESTIONS>Q 6
What do you mean by angular magnification of a simple microscope?
EASY
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 5 - Refraction Through a Lens>QUESTIONS>Q 7
Visual angle of any object from naked eye is 2° and from magnifying glass is 20°. What is the magnifying power of the glass? 
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 5 - Refraction Through a Lens>QUESTIONS>Q 8
An object of height 5 cm is placed in front of a convex lens that forms a virtual image of the object of height 15 cm. What is the magnification of the lens?