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प्रश्न
Name the scientist who discovered Ultraviolet rays
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उत्तर
Ritter
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संबंधित प्रश्न
How are X-rays produced?
The figure shows the intensity-wavelength relations of X-rays coming from two different Coolidge tubes. The solid curve represents the relation for the tube A in which the potential difference between the target and the filament is VA and the atomic number of the target material is ZA. These quantities are VB and ZB for the other tube. Then,
X-ray incident on a material
(a) exerts a force on it
(b) transfers energy to it
(c) transfers momentum to it
(d) transfers impulse to it.
The Kβ X-rays from certain elements are given below. Draw a Moseley-type plot of √v versus Z for Kβ radiation.
| Element | Ne | P | Ca | Mn | Zn | Br |
| Energy (keV) | 0.858 | 2.14 | 4.02 | 6.51 | 9.57 | 13.3 |
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- Calculate the speed of the wave.
- Name the medium through which it is traveling.
Name two sources of ultraviolet radiation.
If the Earth did not have atmosphere, would its average surface temperature be higher or lower than what it is now? Explain.
X-rays, gamma rays and microwaves travelling in a vacuum have ______.
Radio waves of constant amplitude can be generated with.
How do ultraviolet rays compare with visible light?
