A narrow beam of white light can be split up into differe...
A narrow beam of white light can be split up into different colours by a glass prism. The correct explanation is that
white light is an electromagnetic wave
the prism has all the colours of the white light
white light has undergone total internal reflection in the prism
different colours of white light travel with different speeds in glass
white ligth consist of yellow, green and red colours
Correct answer is D
No explanation has been provided for this answer.
The amplitude of a sound wave determines its ...
Which of the following devices are used to measure pressure? i. Aneroid barometer. ii. hydromete...
An electric generator rated 12 kW, 2 kV distribute power through a cable of resistance 20\...
Why is it impossible for the lines of force of an electric field to cross one another? ...