(b) Force - Are
1. Pressure is equal to :
(a) Force X Area
(c) Area – Force
2. Sound is caused due to: :
(a) Vibrations
(c) Propagation of light
3. Which product is used in dry cleaning?
(a) Petrol
(c) Kerosene
(b) Change in physical state
(d) None of these
(b) Diesel
(d) Fuel oil
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