Practice Light (6) - Light

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10 questions

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4 cards from this section. Quick, good the night before a test.
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Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is light?
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Think about what we need to see.
Question 2.
What happens to light when it hits a smooth surface?
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What do we call this behavior?
3Question 3.
What is the speed of light in a vacuum?
- 3 x 10^6 m/s
- 3 x 10^8 m/s
- 3 x 10^10 m/s
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It’s a number often mentioned in physics.
4Question 4.
True or False: Diffuse reflection occurs on smooth surfaces.
- True
- False
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Think about how a wall reflects light.
Question 5.
A plane mirror forms an image of an object 2 meters in front of it. How far is the image behind the mirror from the surface?
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Remember the properties of images in plane mirrors.
Question 6.
Two mirrors are set at an angle of 30 degrees. How many images can be formed?
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Use the formula for calculating the number of images.

6 more questions in this section. Enroll free to practise them all.