Question

Give one word (any 4) [4x1=4]

a. Process of heat transfer even without a medium.

b. A ray of light falling on a surface.

c. Energy which causes the sensation of hearing.

d. Materials which allow the heat energy to pass easily through them.​

Answer 1

Answer:

1. Radiation

2. Beam

3. Sound

4. Metals

Explanation:

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Answer 2

1.radiation

2.spearical