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The following constituent radiations of electromagnetic spectrum and their use is mentioned below
(i) Produce intense heating effect.
(ii) Is absorbed by the ozone layer in the atmosphere-ultraviolet radiation.
(iii) Is used for studying crystal structure X-rays.
How many of them are correct?
Options:
(i) Produce intense heating effect.
(ii) Is absorbed by the ozone layer in the atmosphere-ultraviolet radiation.
(iii) Is used for studying crystal structure X-rays.
How many of them are correct?
Solution:
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Verified Answer
The correct answer is:
three
(i) Infra-red waves: These are used in green houses to keep the plants warm.
(ii) Ultraviolet radiations: These are used in food preservation.
(iii) X-rays: These are used in medical diagnosis.
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