EASY
10th CBSE
IMPORTANT
Earn 100

The refractive index of water for light going from air to water is 1.33, what will be the refractive index of air for light going from water to air?

Important Questions on Light - Reflection and Refraction

MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 11
Define the refractive index and express it mathematically.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 12
Refractive indices of two materials, I and II are 1.78 and 1.33 respectively. Which of the two media is optically rarer?
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 13
State any two effects caused by the refraction of light.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 14
On which two factors does the focal length of a spherical lens depend?
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 15
At what distance should an object be placed in front of a convex lens to form a real image of the same size as the object?
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 16
In order to use a convex lens as a magnifying glass, where should the object be placed?
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 17
If we wish to obtain a real, inverted and magnified image of an object placed in front of a convex lens, where should the object be placed?
EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 18
If an object is kept very far from a convex lens in front of it, where is its image formed? (at principal focus/at centre of curvature)