Who has been selected for the Hans von Hentig Award for

The motion of a freely falling body is an example of ______________ accelerated motion.

What is the pH of Urine ?

Water gets cooled, when ice is immersed in it, this phenomenon is known as

What does friction cause to the screws, ball bearings and soles of the shoes?

What term describes the rate of change of velocity? 

What is the frequency of Ultrasonic Waves?

Which Instrument is used to measure depth of ocean?

If input frequency of a full wave rectifier be n, then output frequency would be-

A simple microscope consists of :

The splitting up of white light into seven colours on passing through a glass prism is called as