Question 2
Question 2 of 40
Question image for Q2
You can solve this MCQ to see its answer, but your attempt won't be logged unless you login
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
1. Physical quantities an...
1.2. SI units

recall the following SI base quantities and their units: mass (kg), length (m), time (s), current (A), temperature (K)

22. Quantum physics
22.2. Photoelectric effect

explain why the maximum kinetic energy of photoelectrons is independent of intensity, whereas the photoelectric current is proportional to intensity

22. Quantum physics
22.1. Energy and momentum of a phot...

use the electronvolt (eV) as a unit of energy