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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
A free atom of iron emits Kα X-rays of energy 6.4 keV. Calculate the recoil kinetic energy of the atom. Mass of an iron atom = 9.3 × 10−26 kg.
(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
Name the part of the electromagnetic spectrum which is:
Suitable for radar systems used in aircraft navigation.
Name the part of the electromagnetic spectrum which is:
Produced by bombarding a metal target with high electrons.
Identify the part of the electromagnetic spectrum used in (i) radar and (ii) eye surgery. Write their frequency range.
Name the radiation of the electromagnetic spectrum which is used for the following:
To photograph internal parts of the human body and Give the frequency range
Electromagnetic waves with wavelength
- λ1 is used in satellite communication.
- λ2 is used to kill germs in water purifies.
- λ3 is used to detect leakage of oil in underground pipelines.
- λ4 is used to improve visibility in runways during fog and mist conditions.
- Identify and name the part of electromagnetic spectrum to which these radiations belong.
- Arrange these wavelengths in ascending order of their magnitude.
- Write one more application of each.
Which one of the following electromagnetic radiation has the least wavelength?
Name the electromagnetic radiation that has been used in obtaining the image below.
How are the electric and magnetic fields oriented in an electromagnetic wave?
What gives rise to gamma rays?
