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प्रश्न
Name three properties of ultraviolet radiations which are similar to visible light.
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उत्तर
(a) Ultraviolet radiations travel in a straight line with a speed of 3 x `10^8` m in air (or vacuum).
(b) They obey the laws of reflection and refraction.
(c) They affect the photographic plate.
संबंधित प्रश्न
To which part of the electromagnetic spectrum does a wave of frequency 5 × 1011 Hz belong?
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Is it possible that in a Coolidge tube characteristic Lα X-rays are emitted but not Kα X-rays?
For harder X-rays,
(a) the wavelength is higher
(b) the intensity is higher
(c) the frequency is higher
(d) the photon energy is higher.
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(a) target material
(b) accelerating voltage
(c) separation between the target and the filament
(d) temperature of the filament.
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Name the electromagnetic radiation that has been used in obtaining the image below.
