Thai Sikh International School
On-line
assignment
Year 10A &B Physics
29.03.13
1) The
refractive index of water is 1.33.Calculate the angle of refraction if light
(in air)strikes water at an angle of incidence of
a) 24ᵒ b) 53ᵒ
2) A
ray of light , in air , strikes one side of a rectangular glass block. The
refractive index of the glass is 1.5,
a) Draw
a diagram to show the direction the will take in the glass if the angle of
incidence is 0ᵒ.
b) Draw
a diagram to show the approximation direction the ray will take in the glass if
the angle of incidence is 45ᵒ, and calculate the angle of refraction.
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