Question
Write two properties and two uses of X-rays.
✓
Answer
Properties of X-rays :
(i) X-rays are electromagnetic waves of very short wavelength ranging from 1 to 100 Å.
(ii) The rays travel in a straight line and are invisible to the eye.
Uses of X-rays :
(i) Surgery : The most common use of X-rays is to get photograph of interior of human body. This photograph called radiograph is used for the detection of fractures, diseased organs, foreign matter like bullets and presence of stones in the human body.
(ii) Radio therapy : Controlled X-rays are used to destroy malignant tumours and to cure skin diseases. Long exposure to X-rays kills the germs in the body and hard X-rays are used to destroy tumours very deep inside the body.
(i) X-rays are electromagnetic waves of very short wavelength ranging from 1 to 100 Å.
(ii) The rays travel in a straight line and are invisible to the eye.
Uses of X-rays :
(i) Surgery : The most common use of X-rays is to get photograph of interior of human body. This photograph called radiograph is used for the detection of fractures, diseased organs, foreign matter like bullets and presence of stones in the human body.
(ii) Radio therapy : Controlled X-rays are used to destroy malignant tumours and to cure skin diseases. Long exposure to X-rays kills the germs in the body and hard X-rays are used to destroy tumours very deep inside the body.
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