Refraction of Light Worksheet
Explore the phenomenon of light refraction, including Snell's Law, refractive index, and real-world applications with this Grade 9 Science worksheet.
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Topics
Refraction of Light
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. What phenomenon occurs when light passes from one medium to another and changes direction?
Reflection
Refraction
Diffraction
Absorption
2. Which of the following statements about the refractive index (n) of a medium is true?
It is always less than 1.
It is a measure of how much light bends.
It is unitless.
Both b and c
3. According to Snell's Law, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the of the two media.
4. When light travels from a denser medium to a rarer medium, it bends the normal.
5. Observe the diagram below showing light entering water. Explain why the light ray bends as it enters the water.
6. Define the term 'critical angle' in the context of light refraction.
7. Light travels faster in a denser medium than in a rarer medium.
True
False
8. Total Internal Reflection occurs when the angle of incidence is greater than the critical angle.
True
False
9. A swimming pool appears shallower than it actually is. Using your knowledge of refraction, explain why this optical illusion occurs. Include a simple diagram to illustrate your explanation.