Question 24
Question 24 of 40
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Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
3. Waves
3.2.2. Refraction of light

State the meaning of critical angle

3. Waves
3.2.1. Reflection of light

State that for reflection, the angle of incidence is equal to the angle of reflection; recall and use this relationship