MEDIUM
10th Uttarakhand Board
IMPORTANT
Earn 100

An object is kept between centre of curvature (C) and focus (F). Show the position of image formed by concave mirror and convex mirror by ray diagram.

Important Questions on Light - Reflection and Refraction

MEDIUM
10th Uttarakhand Board
IMPORTANT
A  4 cm long object is placed at a distance of 20 cm from a concave mirror of focal length 15 cm. Find the position, size, and nature of the image.
EASY
10th Uttarakhand Board
IMPORTANT
Find the focal length of a lens of Power 2.5 D.
HARD
10th Uttarakhand Board
IMPORTANT
An object 5 cm in length is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Find the position, nature and size of the image.
MEDIUM
10th Uttarakhand Board
IMPORTANT
An object 4 cm in size, is placed at 25 cm in front of a concave mirror of focal length 15 cm. At what distance from the mirror should be screen be place in order to obtain a sharp image? FInd the nature and the size of the image.
MEDIUM
10th Uttarakhand Board
IMPORTANT
Light enters from air to glass having a refractive index 1.50. What will be the speed of light in glass if the speed of light in air is 3×108 ms-1.
MEDIUM
10th Uttarakhand Board
IMPORTANT
Light enters from air into a glass plate of refractive index 1.5. What will be speed of light in glass? (Speed of light in air = 3×108 ms-1)
EASY
10th Uttarakhand Board
IMPORTANT
The refractive index of water is 1.33. What is the meaning of this statement?