Advertisements
Advertisements
प्रश्न
What happens when an electron collides with a positron?
Advertisements
उत्तर
They annihilate each other, producing gamma ray photons.
संबंधित प्रश्न
Name the parts of the electromagnetic spectrum which is
used to treat muscular strain.
Write in brief, how these waves can be produced.
To which part of electromagnetic spectrum does a wave of frequency 3 × 1013 Hz belong?
Name the radiations of wavelength just longer than 8 × 10-7m.
Consider a photon of a continuous X-ray coming from a Coolidge tube. Its energy comes from
For harder X-rays,
(a) the wavelength is higher
(b) the intensity is higher
(c) the frequency is higher
(d) the photon energy is higher.
Name the radiation which can be detected by thermopile.
Name the part of the electromagnetic spectrum which is:
Produced by bombarding a metal target with high electrons.
Answer briefly.
Does an ordinary electric lamp emit EM waves?
The frequency of x-rays, y-rays and ultraviolet rays are respectively a, b and c. Then:-
All components of the electromagnetic spectrum in a vacuum have the same ______
