A plate of glass with parallel faces having a refractive index of 1.51 is restin
ID: 1291419 • Letter: A
Question
A plate of glass with parallel faces having a refractive index of 1.51 is resting on the surface of water in a tank. A ray of light coming from above in air makes an angle of incidence 36.5 degrees with the normal to the top surface of the glass.
What angle ?3 does the ray refracted into the water make with the normal to the surface? Use 1.33 for the index of refraction of water. Express answer in degrees.
A plate of glass with parallel faces having a refractive index of 1.51 is resting on the surface of water in a tank. A ray of light coming from above in air makes an angle of incidence 36.5 degrees with the normal to the top surface of the glass. What angle ?3 does the ray refracted into the water make with the normal to the surface? Use 1.33 for the index of refraction of water. Express answer in degrees.Explanation / Answer
Accordind to snells law, theta1*sin(theta1)=theta2*sin(theta2)
using the same relation for air-glass then glass- water combination theta3 is obtained and theta3= 26.5644 in degree
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