MEDIUM
7th CBSE
IMPORTANT
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A plane mirror always forms a real image.

50% studentsanswered this correctly

Important Questions on Light

MEDIUM
7th CBSE
IMPORTANT
Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Q 3
A virtual image cannot be obtained on a screen.
MEDIUM
7th CBSE
IMPORTANT
Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Q 4
We use a concave lens as a magnifying glass.
MEDIUM
7th CBSE
IMPORTANT
Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Q 5
White light is composed of three colours.
MEDIUM
7th CBSE
IMPORTANT
Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Match the following
Column I Column II
1. Convex lens (a) Rainbow
2. Concave lens (b) Virtual image
3. Prism (c) Regular reflection
4. Plane mirror (d) Converging rays
5. Shiny surface  (e) Diverging rays

 

MEDIUM
7th CBSE
IMPORTANT
Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Q 1

What type of surface causes regular reflection?

(Rough and dull surface/Smooth and shiny surface)

MEDIUM
7th CBSE
IMPORTANT
Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Q 2
Which lens is used in the magnifying glass? (Choose from the list: Concave lens and convex lens).
MEDIUM
7th CBSE
IMPORTANT
Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Q 3
Which mirror is used as a rear view mirror in vehicles? (Choose from convex mirror or concave mirror).
MEDIUM
7th CBSE
IMPORTANT
Interactive Science 7>Chapter 15 - Light>SUMMATIVE ASSESSMENT>Q 4

What kind of mirrors are used in torches and headlights of a car? (Choose from the following- Concave mirror/convex mirror).