MEDIUM
7th CBSE
IMPORTANT
Earn 100

Explain the differences between the following:

Concave lens and convex lens.

Important Questions on Light and Reflection

MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 12 - Light and Reflection>EXERCISES>Q VII
Discuss an activity to demonstrate rectilinear propagation of light.
HARD
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 12 - Light and Reflection>EXERCISES>Q VII
How is a virtual image formed by a concave mirror and a convex mirror? Draw suitable diagrams.
EASY
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 12 - Light and Reflection>EXERCISES>Q VII

What happens when:

light falls on a shiny surface.

 

EASY
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 12 - Light and Reflection>EXERCISES>Q VII

What happens when:

a circular disc of seven colours is rotated at a high speed?

EASY
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 12 - Light and Reflection>Brain Teasers
What type of lens is an air bubble inside water?
MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 12 - Light and Reflection>Brain Teasers
Can light be concentrated using mirrors? Can it be amplified using mirrors? Give reasons for both of your answers.
MEDIUM
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 12 - Light and Reflection>Brain Teasers
You are given a concave mirror and a convex mirror. How can you differentiate between them without touching?
EASY
7th CBSE
IMPORTANT
SCIENCE ROUTE 7>Chapter 12 - Light and Reflection>Brain Teasers
Karuna has a big and a small plane mirrors. Compare the image formed by these two mirrors of the same object.