Question 30
Question 30 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
8. Superposition
8.1. Stationary waves

explain and use the principle of superposition

7. Waves
7.4. Electromagnetic spectrum

state that all electromagnetic waves are transverse waves that travel with the same speed c in free space

7. Waves
7.1. Progressive waves

derive, using the definitions of speed, frequency and wavelength, the wave equation v = fλ