Stopping Potential
Trending Questions
- 1.8 V
- 1.3 V
- 0.5 V
- 2.3 V
In a photo electric experiment 4 electrons with varying kinetic energy come out.
E1=1.6×10−19JE2=2.1×10−19JE3=3.2×10−19JE4=1.2×10−19J
The stopping potential , given this data will be
In Photoelectric setup as soon as the potential reaches Vo (stopping potential), the electrons stop coming out of the emitter plate.
True
False
According to the classical wave picture of light, how would the current versus potential (between the plates) graph vary upon varying intensity?
- 2.25×107
- 5.4×107
- 2.85×10−24
- 5.4×10−24
In the Photoelectric setup, I would like to achieve stopping potential by making one of the plates in the setup, positively charged. Which one should I charge positively?
- More data is required to make a selection
The collector plate
The emitter plate
Stopping potential cannot be achieved by making any plate positively charged
- No
- Yes
- 1.8×106ms−1
- 0.8×103ms−1
- 6×105ms−1
- 8×105ms−1
When stopping potential is applied in an experiment on photoelectric effect, no photocurrent is observed. This means that
The photoelectrons are accumulated near the collector plate
The photoelectrons are dispersed from the sides of the apparatus.
The emission of photoelectrons is stopped
The photoelectrons are emitted but are re-absorbed by the emitter metal
- 2
- 4
- 14
- 12