Q22 of 5054_w24_qp_12

Question 22

Question 22 of 40

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No letter options?

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

Define the terms critical angle and total internal reflection; recall and use the equation n = 1 / sin c

2. Thermal physics

2.3.3. Radiation

Describe the process of thermal energy transfer by infrared radiation and know that it does not require a medium

3. Waves

3.2.1. Reflection of light

Define and use the terms normal, angle of incidence and angle of reflection