Year 12 Physics
The particle nature of light
Refraction and total internal reflection, the photoelectric effect, photons and the work function, energy levels and line spectra, and wave-particle duality.
The particle nature of light free practice
No timer and no account needed. Check each answer as you go, then read the explanation.
1. A photoelectric cell carries a current of 4.8 μA. How many electrons leave the metal each second, in units of 1013? (e = 1.60 × 10−19 C)
Your answer is marked as soon as you give it.
Want more of this topic?
- A narrated lesson video that works through the topic, with worked examples
- 100 practice questions at foundation, core and stretch level
- A worked explanation on every answer, and progress you can come back to
The lesson and practice open when you start the 7-day free trial. Cancel before it ends and you pay nothing.