Respuesta :
Fraction of the speed of light v = 1.93*108 m/s.
Using the given information,
Angle of refraction, = Angle of incidence - deviation = 45 - 18 = 27
Using snell's law for refractive index of amber
[tex]nairSin\thetaair = namberSin\thetaamber[/tex]
1*SIn45o = nSin27o
n = 1.56
Now , Find the speed,
velocity = c/n where c = 3*108 m/s. speed of light
velocity = 3* [tex]10^{8}[/tex] /1.56
v = 1.93* [tex]10^{8}[/tex] m/s.
In several branches of physics, the speed of light in a vacuum, typically abbreviated as c, plays a crucial role. Exactly 299,792,458 meters per second is the speed of light, or c. (approximately 300,000 kilometres per second; 186,000 miles per second; 671 million miles per hour). The speed at which common matter or energy (and hence any signal conveying information) may move across space is limited by the special theory of relativity, and this speed is given by the constant c.
The speed of light is the same for all types of electromagnetic radiation, including visible light. Light and other electromagnetic waves appear to propagate instantly for many purposes in practice, but their limited speed has dramatic consequences over large distances and for experiments requiring high sensitivity. saw the stars
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