9. What is the maximum displacement of a wave?
a. wavelength b. frequency c. amplitude
10. Objects are visible because of the light they
a. diffuse b.refract c. reflect d. absorb
11. The angle between the incident rays and the normal line is 400. What is the angle reflection?
a. 200 b. 400 C. 600 d. 800
12. A sheet of blue paper was placed under a certain light. The paper remained blue. light could be
a. red c. white d. violet b.green
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Answer:
9.C.Amplitude
10.C.Reflect
11.A.200
12.A.Red
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