MCQ
The photoelectric effect can be understood on the basis of:
- AWave theroy of light only.
- BElectromagnetic theory of light only.
- ✓Quantum theory of light only.
- DNone of these.
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$(A)$ The image executes periodic motion
$(B)$ The image executes non-periodic motion
$(C)$ The turning points of the image are asymmetric w.r.t the image of the point at $x =10\,cm$
$(D)$ The distance between the turning points of the oscillation of the image is $\frac{{100}}{{21}}$