Physics Sound of frequency below 20 Hz is called ultrasonic infrasonic audio sounds supersonics ultrasonic infrasonic audio sounds supersonics ANSWER DOWNLOAD EXAMIANS APP
Physics The sparkling of a diamond is due to Refraction of light Total internal reflection of light Polarisation of light Interference of light Refraction of light Total internal reflection of light Polarisation of light Interference of light ANSWER DOWNLOAD EXAMIANS APP
Physics Rate of change of momentum is Pressure Velocity Force Area Pressure Velocity Force Area ANSWER DOWNLOAD EXAMIANS APP
Physics Woollen cloth protects the body from cold because It is a poor conductor of heat It is a good conductor of heat It reflects heat External heat rays enter into the body through the woollen cloth It is a poor conductor of heat It is a good conductor of heat It reflects heat External heat rays enter into the body through the woollen cloth ANSWER DOWNLOAD EXAMIANS APP
Physics The height of a geo-stationary satellite from the Earth's surface is approximately : 42,000 km 36,000 km 30,000 km None of these 42,000 km 36,000 km 30,000 km None of these ANSWER DOWNLOAD EXAMIANS APP
Physics A vacuum cleaner works on the principle of pressure difference. On the moon it will Work with increased efficiency Work with reduced efficiency Not work at all Work as efficiently as on the earth Work with increased efficiency Work with reduced efficiency Not work at all Work as efficiently as on the earth ANSWER DOWNLOAD EXAMIANS APP
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