Physics The height of a geo-stationary satellite from the Earth's surface is approximately : 30,000 km None of these 42,000 km 36,000 km 30,000 km None of these 42,000 km 36,000 km ANSWER DOWNLOAD EXAMIANS APP
Physics Permissible noise level at Residential area during night time is : 75 dB (A) 45 dB (A) 55 dB (A) 80 dB (A) 75 dB (A) 45 dB (A) 55 dB (A) 80 dB (A) ANSWER DOWNLOAD EXAMIANS APP
Physics The characteristic invalid for heat radiation is that it travels : Heating the medium through which it passes With the speed of light In a straight line In all directions Heating the medium through which it passes With the speed of light In a straight line In all directions ANSWER DOWNLOAD EXAMIANS APP
Physics Velocity of sound in air does not depend on Temperature of air Pressure of air Density of air Humidity of air Temperature of air Pressure of air Density of air Humidity of air ANSWER DOWNLOAD EXAMIANS APP
Physics The splitting of different colours of light in a prism is : Refraction of light Disperson of light Diffraction of light Reflection of light Refraction of light Disperson of light Diffraction of light Reflection of light ANSWER DOWNLOAD EXAMIANS APP
Physics In mirrors the back surface is coated with a thin layer of : Silver nitrate Mercury Red oxide Silver Silver nitrate Mercury Red oxide Silver ANSWER DOWNLOAD EXAMIANS APP
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