Physics भौतिक विज्ञान Quiz #20
Two stones of unequal masses are thrown vertically up with the same velocity. Which of the following will happen?
The unit of electrical power is
The scientist who first sent electromagnetic waves to distant places is
The centre of gravity of a sprinter during the race lies
Cloudy nights are warmer compared nights because clouds mainly
A metal plate with a circular hole at the centre is heated. What will happen to the area of the hole ?
The period of revolution of a geo stationary satellite is
A piece of paper and a cricket ball are dropped from the same height. Under which of the following conditions do both reach the surface simultaneously ?
The frequency of ultrasound wave is typically
Which type of reaction produces the most harmful radiation ?