Lets focus on light and study a little physics.............
REFRACTION OF LIGHT
Velocity of light in air (Va) = 3 x 10 8 ms-1
Velocity of light in water (Vw) = 9/4 x 108 ms-1
Velocity of light in glass (Vg) = 2 x 108 ms-1
Velocity of light in diamond (Vd) = 4/3 x 108 ms-1
· Light has properties of _____ (discovered by Hughgen) and the properties of particles (discovered by Einstein).
· Considering light as a wave it has velocity, wavelength and frequency related by the formula v= f x
Sensation connected with frequency light is sight (color).
· Violet light has higher frequency and smaller wavelength but red light has low frequency and large wavelength.
· V
I Descending order
I Descending order
B of frequency
G
Y
O
R
Velocity of light depends on the medium.
G
Y
O
R
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