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प्रश्न
Name the region beyond the violet end of the spectrum called.
उत्तर
Ultraviolet region.
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संबंधित प्रश्न
Arrange the following radiations in the order of their increasing wavelength:
X-rays, infrared rays, ratio waves, gamma ray and microwaves.
What is the range of the wavelength of the following electromagnetic waves?
(a) Ultraviolet
What are ultraviolet radiations?
Continuous X-rays are made to strike a tissue paper soaked with polluted water. The incoming X-rays excite the atoms of the sample by knocking out the electrons from the inner shells. Characteristic X-rays are analysed and the intensity is plotted against the wavelength. Assuming that only Kα intensities are detected, list the elements present in the sample from the plot. Use Moseley's equation v − (25 × 1014Hz)(Z − 1)2.
(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
Name the scientist who discovered Ultraviolet rays
Name two sources of ultraviolet radiation.
State three properties of infrared radiations similar to that of visible light.
What are the ultraviolet rays?
Name two electromagnetic waves of wavelength smaller than that of violet light.
