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CBSE Class 12 Physics 2015 Delhi Set 1 Paper

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Question : 11 of 26
Marks: +1, -0
SECTION - C
Name the parts of the electromagnetic spectrum which is
(a) suitable for radar systems used in aircraft navigation.
(b) used to treat muscular strain.
(c) used as a diagnostic tool in medicine.
Write in brief, how these waves can be produced.
Solution:  
Name of the parts of e.m. spectrum for a,b,ca, b, c Production
(a) Microwave
Production: Klystron/magnetron/Gunn diode (any one)
(b) Infrared Radiation
Production: Hot bodies / vibrations of atoms and molecules
(any one)
(c) X-Rays
Production: Bombarding high energy electrons on metal target/ xx-ray tube/inner shell electrons(any one).
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