Physics When a ring of metal is heated what happens to its hole ? Contracts It expands or contracts according to its diameter It expands or contracts according to its coefficient of expansion Expands Contracts It expands or contracts according to its diameter It expands or contracts according to its coefficient of expansion Expands ANSWER DOWNLOAD EXAMIANS APP
Physics The splitting of different colours of light in a prism is : Diffraction of light Disperson of light Refraction of light Reflection of light Diffraction of light Disperson of light Refraction of light Reflection of light ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of heat radiation in vacuum is Less than that of light Greater than that of light Equal to that of sound Equal to that of light Less than that of light Greater than that of light Equal to that of sound Equal to that of light ANSWER DOWNLOAD EXAMIANS APP
Physics Ice is packed in saw dust because Saw dust will not get melted easily. Saw dust is a good conductor of heat. Saw dust is poor conductor of heat. Saw dust does not stick to the ice. Saw dust will not get melted easily. Saw dust is a good conductor of heat. Saw dust is poor conductor of heat. Saw dust does not stick to the ice. ANSWER DOWNLOAD EXAMIANS APP
Physics Circuit breaker usually operate under Steady state of short-circuit current After D. C. component has ceased Transient state of short-circuit current Sub-transient state of short-circuit current Steady state of short-circuit current After D. C. component has ceased Transient state of short-circuit current Sub-transient state of short-circuit current ANSWER DOWNLOAD EXAMIANS APP
Physics When a steel ball is placed on the surface of mercury, it does not sink because Of the surface tension of mercury Of the high viscosity of mercury The density of mercury is greater than that of steel Mercury is a semisolid Of the surface tension of mercury Of the high viscosity of mercury The density of mercury is greater than that of steel Mercury is a semisolid ANSWER DOWNLOAD EXAMIANS APP
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