What is light
2006-12-13 21:42:34 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Physics
An elecrto magnetic wave
2006-12-13 21:46:39 · answer #1 · answered by Mihir Durve 3 · 0⤊ 0⤋
Light is electromagnetic radiation with a wavelength that is visible to the eye (visible light) or, in a technical or scientific context, electromagnetic radiation of any wavelength[1]. The elementary particle that defines light is the photon. The three basic dimensions of light (i.e., all electromagnetic radiation) are:
Intensity (or amplitude), which is related to the human perception of brightness of the light,
Frequency (or wavelength), perceived by humans as the colour of the light, and
Polarization (or angle of vibration), which is only weakly perceptible by humans under ordinary circumstances.
2006-12-13 21:50:45 · answer #2 · answered by vamsy 4 · 0⤊ 0⤋
Light is electromagnetic radiation with a wavelength that is visible to the eye (visible light) or, in a technical or scientific context, electromagnetic radiation of any wavelength. The elementary particle that defines light is the photon.
2006-12-13 21:49:13 · answer #3 · answered by Som™ 6 · 0⤊ 0⤋
(a) v^2 = u^2 + 2 a s = 0 + 2 a s = 2 * 4000 * 2 /1000 => v = 4 m/s v = u + a t = 0 + a t => t = v / a = 4 / 4000 = 0.001s b) v^2 = u^2 + 2 a s on the ideal maximum element the terrific velocity, v is 0 then s is the ideal maximum hight. 0 = u^2 - 2 g h => h = u^2/ (2g) = 4^2 /(2 * 9.80 one)= a million.6 m approximately.
2016-10-05 07:21:38 · answer #4 · answered by ? 4 · 0⤊ 0⤋
The energy sensed by our eye is called light.
2006-12-13 22:20:22 · answer #5 · answered by Pearlsawme 7 · 0⤊ 0⤋
http://en.wikipedia.org/wiki/Light
2006-12-13 21:50:35 · answer #6 · answered by Yanni 1 · 0⤊ 0⤋
LIGHT IS AKIND OF ENEGRY WHICH HELP US TO SEE.
2006-12-13 22:39:23 · answer #7 · answered by ? 2 · 0⤊ 0⤋