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प्रश्न
Name the subjective property of light related to its wavelength.
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उत्तर
(i) For blue light, approximate wavelength=4800 Å
(ii) For red light, approximate wavelength=8000 Å
संबंधित प्रश्न
Name the region beyond the red end of the spectrum.
Name two electromagnetic waves of frequency smaller than that of violet light. State one use of each.
A certain element emits Kα X-ray of energy 3.69 keV. Use the data from the previous problem to identify the element.
(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
Identify the part of the electromagnetic spectrum used in
(i) radar and
(ii) eye surgery. Write their frequency range.
Give one use of electromagnetic radiation in Microwaves.
Answer briefly.
Give two uses of radio waves.
The ozone layer absorbs
SONAR emits which of the following waves?
