STEP IN
Malini Sheshdari Science Solutions for Exercise - STEP IN
Simple step-by-step solutions to STEP IN questions of Light from CONCERT Science 7. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from STEP IN with Hints & Solutions
Light changes its direction when it passes through a lens.
It is quite safe to view a source of bright light through a magnifying glass.
If a disc with seven rainbow colours is rotated rapidly, it will lose the colours permanently.
Identify the type of mirror or lens used as the side mirror of a motorbike.
Identify the type of mirror or lens used as a magnifying glass.
In your notebook, draw diagrams of a converging lens and a diverging lens. Show what happens to the beam of light that passes through each of them. Label the lenses as either concave or convex.
How do we know that sunlight is made up of light of different colours?
Draw a simple periscope. Label the object and observer's eye. With the help of lines, show how light is reflected to help us see an object that is not in the direct line of sight.
