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प्रश्न
Name the scientist who discovered
X-rays
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उत्तर
Roentgen
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संबंधित प्रश्न
Name the parts of the electromagnetic spectrum which is
used as a diagnostic tool in medicine.
Write in brief, how these waves can be produced.
What do you understand by the invisible spectrum?
State the approximate range of wavelength associated with infrared rays.
Consider a photon of continuous X-ray and a photon of characteristic X-ray of the same wavelength. Which of the following is/are different for the two photons?
The electron beam in a colour TV is accelerated through 32 kV and then strikes the screen. What is the wavelength of the most energetic X-ray photon?
(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
The area to be covered for T.V telecast is doubled then the height of transmitting antenna (T.V tower) will have to be:-
Identify the electromagnetic wave whose wavelength range is from about 10-12 m to about 10-8 m. Write one use of this.
Identify the part of the electromagnetic spectrum which:
- produces the heating effect.
- is absorbed by the ozone layer in the atmosphere.
- is used for studying crystal structure.
Write any one method of the production of each of the above radiations.
How do the wavelengths and frequencies of microwaves compare with those of radio waves?
Which set lists uses of ultraviolet rays?
