Physics What is refractive index ? It is defined as the product of speed of light in medium and in vacuum. It is defined as the ratio of speed of light in vacuum to the speed of light in the medium. None of above It is defined as the ratio of speed of light in the medium to the speed of light in vacuum. It is defined as the product of speed of light in medium and in vacuum. It is defined as the ratio of speed of light in vacuum to the speed of light in the medium. None of above It is defined as the ratio of speed of light in the medium to the speed of light in vacuum. ANSWER DOWNLOAD EXAMIANS APP
Physics Lightning heats the surrounding air to 3000 deg Cent 30000 deg Cent 300 deg Cent 300000 deg Cent 3000 deg Cent 30000 deg Cent 300 deg Cent 300000 deg Cent ANSWER DOWNLOAD EXAMIANS APP
Physics According to the Second Law of Motion, for a given force, acceleration is inversely proportional to the ________ of an object. Force Mass Volume Density Force Mass Volume Density ANSWER DOWNLOAD EXAMIANS APP
Physics Wollen clothes keep the body warm because Wool increases the temperature of the body Wool is a bad conductor Wool absorbs radiant heat from outer objects Wool rejects heat from the outer objects Wool increases the temperature of the body Wool is a bad conductor Wool absorbs radiant heat from outer objects Wool rejects heat from the outer objects ANSWER DOWNLOAD EXAMIANS APP
Physics Gas thermometers are more sensitive than the liquid thermometers because the gases Have high,specific heat Have large coefficient of expansion Are lighter Have low specific heat Have high,specific heat Have large coefficient of expansion Are lighter Have low specific heat ANSWER DOWNLOAD EXAMIANS APP
Physics Carbon Arc lamps are commonly used in Cinema projectors Vehicles Photography Domestic lighting Cinema projectors Vehicles Photography Domestic lighting ANSWER DOWNLOAD EXAMIANS APP
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