Mention the effects due to ultraviolet radiation.

What are the uses of ultraviolet radiation ?

Select the correct arrangement of the types of ultraviolet radiations according to the intensity of their effect on human skin

Greenhouse effect is due to

The life on earth is protected from ultraviolet radiation of the sun.

The transition from the state n = 4 to n = 1 in a hydrogen like atom result in ultraviolet radiation. Infrared radiation will be obtained in the transition from

The transition from the state n=3 to n=1 in a hydrogen like atom results in ultraviolet radiation. Infrared radiation will be obtained in the transition from:

The luminous flux of a 1 W sodium vapour lamp is more than that of a 10 kW source of ultraviolet radiation. Comment.

Write the frequency source of production and uses of Ultraviolet radiation.

Mention two effects of strong winds.