Physics To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor Should be made of a good conductor like copper with sharp-pointed edges Should be made of a good conductor but can be of any shape Should be in the form of a vertical rod Can be of any shape Should be made of a good conductor like copper with sharp-pointed edges Should be made of a good conductor but can be of any shape Should be in the form of a vertical rod Can be of any shape ANSWER DOWNLOAD EXAMIANS APP
Physics When a stone is thrown in the calm water of a pond the waves produced on the surface of water in the pond are Both longitudinal and transverse Transverse Waves are not produced Longitudinal Both longitudinal and transverse Transverse Waves are not produced Longitudinal ANSWER DOWNLOAD EXAMIANS APP
Physics Sound becomes hazardous noise pollution at decibels? Above 30 db Above 50 db Above 120 db Above 80 db Above 30 db Above 50 db Above 120 db Above 80 db ANSWER DOWNLOAD EXAMIANS APP
Physics When a ring of metal is heated what happens to its hole ? It expands or contracts according to its coefficient of expansion Contracts Expands It expands or contracts according to its diameter It expands or contracts according to its coefficient of expansion Contracts Expands It expands or contracts according to its diameter ANSWER DOWNLOAD EXAMIANS APP
Physics A light year is a measure of : Velocity Distance Speed Time Velocity Distance Speed Time ANSWER DOWNLOAD EXAMIANS APP
Physics A car parked in the sun with its windows closed gets terribly hot inside. This is due to The double layered wind shield The good conducting power of the metal body The heat emitted by the engine The greenhouse effect The double layered wind shield The good conducting power of the metal body The heat emitted by the engine The greenhouse effect ANSWER DOWNLOAD EXAMIANS APP
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