Question

Short answer questions (Any 5) : 2×5=10

1. What do you mean by refraction?

2. What do you mean by dispersion of light?

3. Write any two rules for making ray diagrams for spherical mirror?

4. How do you measure work done?

5. Define power. What is its SI unit?

6. What are the two factors that affect the moment of force and how?

7. Define law of conservation of energy.​

Answer 1

Answer:

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