Light travels at the fastest speed in
Lux is the SI unit of
Supersonic plane fly with the speed
Inside an aeroplane, flying at a high altitude,
Railway tracks are banked on curves
On a rainy day, small oil films on water show brilliant colours. This is due to
Mach number is used in connection with the speed of
Solar eclipse will take place when
Sound travels with a different speed in media. In what order does the velocity of sound increase in these media?
Identify the vector quantity from the following
Metals are good conductors of electricity because
out of the following, which is not emitted by radioactive substance?
Light year is a unit of
On a cold day when a room temperature is 15oC, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15oC, because
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