Question

Choose a source of light from the following.

• A. Pencil
• B. Candle
• C. Table
• D. Rock

Answer 1

The correct option is B Candle

Any object that gives out light is called a 'source' of light. Sources of light can be natural or artificial.

• Natural sources -- The sun, stars, fireflies.
• Artificial sources -- Candle, torchlight, electric bulb.

Rock, table and pencil do not emit light. So, they are not sources of light.