Gamma rays are of higher energy and much much shorter wavelength than visible light.
No, gamma rays are not visible to the human eye.
Gamma rays have a much higher frequency than visible light with ultraviolet and x-rays between them.
The difference is their wavelengths.
Electromagnetism is manifest along a continuum between slower radio waves and faster energy gamma waves. Visible light can be found in the range between infrared light (slower than waves of visible light) and ultraviolet light (faster than waves of visible light).
No, visible light has a lower frequency than gamma rays. Gamma rays are the highest frequency of electromagnetic energy. They are above X-rays.
It is electromagnetic radiation, which is the same in composition as visible light but has a much higher frequency/shorter wavelength, and will do damage to any biological material it passes through. Both travel at the same speed ('velocity of light') but gamma radiation can penetrate material opaque to visible light.
No. Gamma radiation is of higher energy than visible (light) radiation.
their wavelengths (frequencies)
No. Visible light is in between those particular forms of electromagnetic radiation. Radio waves are lower frequency (longer wavelength) than visible light. Gamma rays are higher frequency (shorter wavelength) than visible light.
We know that ultraviolet light, X-rays and gamma rays have wavelengths shorter than visible light.
Ultra violet light starts just above the visible violet.
Ultraviolet light, visible light, X-rays, microwaves, radio waves, infrared waves, and gamma rays are all on the spectrum of light, are all electromagnetic waves (EM waves). Any EM wave can be considered light. EM waves are composed of photons, which has properties of both a particle and a wave. The difference between different waves on the EM wave/light spectrum is their frequency. For example, radio waves have a very low frequency, microwaves have a slightly higher frequency, then infrared, visible light, ultraviolet, X-rays, gamma rays, etc.