Green light with a wavelength of 550 (nm) and a speed of 3 x 10^8 (m/s) in air travels through glass (n = 1.5). its speed in glass in (m/s) is : a. 1.5 x 10^8 b. 3 x 10^8 c. 4.5 x10^8 d. 6 x 10^8

The speed of light in glass is

Explanation:

To calculate the velocity of light in a medium for given refractive index, we use the equation:

where,

= refractive index of glass = 1.5

c = speed of light in air =

v = speed of light in medium = ?

Putting values in above equation, we get:

Hence, the speed of light in glass is

as technology advances, new experiments often expose problems in accepted theories. c

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-lavira: )

its a 5.5 n

glad that