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प्रश्न
Name the parts of the electromagnetic spectrum which is
used to treat muscular strain.
Write in brief, how these waves can be produced.
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उत्तर
Infrared waves are used to treat muscular strain.
These rays are produced by hot bodies and molecules.
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संबंधित प्रश्न
Why are infra-red waves often called heat waves? Explain.
What are ultraviolet radiations?
The electric current in an X-ray tube (from the target to the filament) operating at 40 kV is 10 mA. Assume that on an average, 1% of the total kinetic energy of the electron hitting hte target are converted into X-rays.
(a) What is the total power emitted as X-rays and (b) how much heat is produced in the target every second?
Name two sources of infrared radiation.
Give one use of electromagnetic radiations in Infrared radiation.
Choose the correct option related to wavelengths (λ) of different parts of the electromagnetic spectrum.
Identify the electromagnetic radiation and write its wavelength range, which is used to kill germs in water purified. Name the two sources of these radiations.
What do electromagnetic waves require for propagation?
How does the frequency of violet light compare with that of red light?
Which set lists applications of X-rays?
