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प्रश्न
Which observation could classical wave theory not explain?
पर्याय
No electrons are emitted below a threshold frequency.
Light consists of photons.
Higher frequency means higher photon energy.
Greater intensity means more photons strike the surface per second.
MCQ
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उत्तर
Classical wave theory could not explain why no electrons are emitted below a threshold frequency. Einstein explained this observation using the energy of individual photons.
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