Question 20
Question 20 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
2. Thermal physics
2.3.3. Radiation

Describe how the rate of emission of radiation depends on the surface temperature and surface area of an object

2. Thermal physics
2.2.3. Melting, boiling and evapora...

Describe melting and boiling in terms of energy input without a change in temperature