G10_Exercise: Reflection and Refraction of Light
Name:
Class:
#Reflection of Light#
1. Draw the reflected ray and what is the angle of reflection as shown in the diagram?
2. What is the incident angle of the light ray shown in the diagram?
3. Diffuse reflection involves light rays reflecting from an uneven surface, as shown in the
diagram. The diagram shows four point -D,E,F, and G- that the 3 light rays A, B, and C might
possibly pass through after being reflected.
Which of points would the light ray A, B, and C pass through?
4. What is the number of images formed by two plane mirrors inclined at 600 of an object
placed symmetrically between mirror?
G10_Exercise: Reflection and Refraction of Light
Name:
Class:
#Refraction of Light#
1. The diagram given shows a ray of light AO falling on a surface separating two media.
Draw the refracted ray in each case.
2. The speed of light in a certain type of plastic is 1.75 x 108 m/s.
Determine the index of refraction of the plastic.
3. What is the speed of light in a diamond with an index of refraction of 2.417 ?
G10_Exercise: Reflection and Refraction of Light
Name:
Class:
4. A light of wavelength 6 x 10-7 m in air, enters a medium with refractive index 1.5.
What will be the wavelength of light in the medium?
5. Light of wavelength 500 nm traveling with a speed of 2.0 x 108 m/s in a certain medium
enters another medium of refractive index 5/4 times that of the first medium.
What are the wavelength and speed in the second medium?
6. A ray of light is incident on a piece of glass at an angle of 400. If the index of refraction of the
glass is 1.24, what is the angle of refraction?
7. A ray of light travels from air into liquid. The ray is incident upon the liquid at an angle of
300. The angle of refraction is 220.
What is the index of refraction of the liquid?
8. Determine the critical angle for water, whose index of refraction is 1.33.
9. The critical angle of diamond is only about 250. Determine the index of refraction of
diamond.