MCQ
Photo cell is a device to
- AStore photons
- ✓Measure light intensity
- CConvert photon energy into mechanical energy
- DStore electrical energy for replacing storage batteries
✓
Answer
Correct option: B.
Measure light intensity
b
The number of electrons can be measured which are directly proportional to the intensity of radiation. hence, intensity can be measured.
The number of electrons can be measured which are directly proportional to the intensity of radiation. hence, intensity can be measured.
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