Question

3. Match the following columns:
Column A Column B
(a) Prism (i) watt
(b) Convex mirror (ii) no unit
(c) Relative density (iii) refraction
(d) Change of state (iv) virtual image
(e) Power (v) constant temperature
4. Give very short answer of the following questions.
(a) What is the SI unit of density?
(b) How does a density of a substance vary with temperature?
(c) Out of water and glass which is optically rarer?
(d) Write down the SI unit of energy?
(e) Which form of matter has the maximum intermolecular space?

Answer 1

Answer:

Explanation:

3)

a-iii

b-iv

c-ii

d-v

e-i

4)a) kg/m³

b)D∝1/T

where,

D=density

T=temperature

c)Water is optically rarer

d)joules

e)gases

Hope it helped you