A radiation P is focused by a proper device on the bulb of a thermometer. Mercury in the thermometer shows a rapid increase. The radiation P is :
(a) infrared radiation
(b) visible light
(c) ultraviolet radiation
(d) X -rays.
The radiation 'P' is founded by a proper device on the bulb of a thermometer. Mercury in the thermometer shows a rapid increase. Name the radiation P.
Which of the following solar radiations pass through the atmosphere of the earth :
X -rays, ultraviolet rays, visible light rays, infrared radiation.