Physics The height of a geo-stationary satellite from the Earth's surface is approximately : None of these 30,000 km 42,000 km 36,000 km None of these 30,000 km 42,000 km 36,000 km ANSWER DOWNLOAD EXAMIANS APP
Physics In a diesel engine the high temperature needed to ignite the fuel is achieved by The battery Compressing air in the cylinders An electrical spark Using heat from exhaust The battery Compressing air in the cylinders An electrical spark Using heat from exhaust ANSWER DOWNLOAD EXAMIANS APP
Physics To measure the speed of an approaching car a police officer shines Light waves on it Ultra high frequency waves on it Microwaves on it Radio waves on it Light waves on it Ultra high frequency waves on it Microwaves on it Radio waves on it ANSWER DOWNLOAD EXAMIANS APP
Physics When a bottle of perfume is opened in one corner of a room the smell spreads soon throughout the room. This is an example of Surface tension Viscosity Diffusion Capillarity Surface tension Viscosity Diffusion Capillarity ANSWER DOWNLOAD EXAMIANS APP
Physics Gamma rays have greatest similarity with A-rays B-rays X-rays U.V.-rays A-rays B-rays X-rays U.V.-rays ANSWER DOWNLOAD EXAMIANS APP
Physics A mirage occurs because of Total internal reflection by layers of air Diffraction of light Interference of light Reflection by hot ground Total internal reflection by layers of air Diffraction of light Interference of light Reflection by hot ground ANSWER DOWNLOAD EXAMIANS APP
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