CBSE Class 12 · 2005 · All India · EM WavesShort Answer

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Name the constituent radiation of the electromagnetic spectrum which
(a) is used in satellite communication,
(b) is used for studying crystal structure,
(c) is similar to the radiations emitted during decay of radioactive nuclei,
(d) has its wavelength range between 390 nm and 770 nm,
(e) is absorbed from sunlight by the ozone layer,
(f) produces intense heating effect.

Answer: (a) Microwaves
(b) X-rays
(c) Gamma rays
(d) Visible light
(e) Ultraviolet rays
(f) Infrared rays.

Solution

Matching each description to the part of the electromagnetic spectrum:
(a) Satellite communication - Microwaves.
(b) Studying crystal structure (diffraction) - X-rays.
(c) Similar to radiation from radioactive decay - Gamma rays.
(d) Wavelength 390-770 nm - Visible light.
(e) Absorbed from sunlight by the ozone layer - Ultraviolet rays.
(f) Intense heating effect - Infrared rays.

CBSE Class 12 Board · 2005 · All India · Subjective

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