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
3.2.4. Dispersion of light

Recall that visible light of a single frequency is described as monochromatic

2. Thermal physics
2.3.3. Radiation

Know that for an object to be at a constant temperature it needs to transfer energy away from the object at the same rate that it receives energy