Advertisements
Advertisements
Question
To which part of the electromagnetic spectrum does a wave of frequency 5 × 1019 Hz belong?
Advertisements
Solution
The frequency 5×1019 Hz belongs to the gamma region of the electromagnetic spectrum.
APPEARS IN
RELATED QUESTIONS
A plane electromagnetic wave travels in vacuum along z-direction. What can you say about the directions of its electric and magnetic field vectors? If the frequency of the wave is 30 MHz, what is its wavelength?
An X-ray tube operates at 40 kV. Suppose the electron converts 70% of its energy into a photon at each collision. Find the lowest there wavelengths emitted from the tube. Neglect the energy imparted to the atom with which the electron collides.
(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
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
Answer briefly.
Why are microwaves used in radar?
Answer briefly.
Why high-frequency carrier waves are used for the transmission of audio signals?
Which of the following is a tool used for separating the different color wavelengths from each other?
Radio waves of constant amplitude can be generated with.
All components of the electromagnetic spectrum in a vacuum have the same ______
Identify the part of the electromagnetic spectrum which:
- produces the heating effect.
- is absorbed by the ozone layer in the atmosphere.
- is used for studying crystal structure.
Write any one method of the production of each of the above radiations.
