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If a photon h...

Question

If a photon having wavelength $6.2 n m$ was allowed to strike a metal plate having work function $50 e V$ , then calculate wavelength associated with emitted electron.

1 \times 10^{- 10} m

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2 \times 10^{- 10} m

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3 \times 10^{- 18} m

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4 \times 10^{- 14} m

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Solution

The correct option is A $1 \times 10^{- 10} m$

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6.2 n m

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K E_{m a x} i s x \times 10^{- 14} m .

13.24 \times 10^{- 28} k g \frac{m}{s} .

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