MEDIUM
10th Manipur Board
IMPORTANT
Earn 100

What are the properties of the principal focus of a concave mirror?

Important Questions on Light

MEDIUM
10th Manipur Board
IMPORTANT
Science for Class 10>Chapter 11 - Light>EXERCISE>Q 2
The image formed by a concave mirror is observed to be real, inverted and larger than the object. Where should be the position of the object?
MEDIUM
10th Manipur Board
IMPORTANT
Science for Class 10>Chapter 11 - Light>EXERCISE>Q 3
You are given three mirrors- convex, concave and plane appearing identical. How can you identify them without touching?
MEDIUM
10th Manipur Board
IMPORTANT
Science for Class 10>Chapter 11 - Light>EXERCISE>Q 8
Why do we prefer a convex mirror as a rear-view mirror in vehicles?
EASY
10th Manipur Board
IMPORTANT
Science for Class 10>Chapter 11 - Light>EXERCISE>Q 9
The radius of curvature of a spherical mirror is 40 cm. What is its focal length in centimetres?
MEDIUM
10th Manipur Board
IMPORTANT
Science for Class 10>Chapter 11 - Light>EXERCISE>Q 10
A concave mirror produces three times magnified real image of an object placed in front of it. Where is the image formed?
MEDIUM
10th Manipur Board
IMPORTANT
Science for Class 10>Chapter 11 - Light>EXERCISE>Q 11
You are given a concave mirror, a scale and a screen. How will you determine the height of a tree?
MEDIUM
10th Manipur Board
IMPORTANT
Science for Class 10>Chapter 11 - Light>EXERCISE>Q 12
A ray of light travelling in air enters obliquely into water. Does the light ray bend towards the normal or away from the normal? Why?
MEDIUM
10th Manipur Board
IMPORTANT
Science for Class 10>Chapter 11 - Light>EXERCISE>Q 13
Light enters from air to glass having refractive index 1.5. What is the speed of light (in m s-1) in the glass? (The speed of light in vacuum is 3×108 m s-1).