Physics-
General
Easy
Question
The graph shown in the figure represent change in the temperature of 5 kg of a substance as it abosrbs heat at a constant rate of 42 kJ min–1 The latent heat of vapourazation of the substance is
- 84 kJ
- 12.6 kJ
The correct answer is: 84 kJ
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physics-General
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Solids and liquids both expand on heating. The density of substance decreases on expanding according to the relation
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A ray of light strikes a corner reflector as shown in figure. As the angle of incidence q is increased, the angle between the final reflected ray and the incident ray
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physics-General
