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Physics-

General

Easy

Question

Lightofwavelength500nmisincidentonametalwithwork function2.28 eV. The de Broglie wavelengthof the emittedelectronis:

$< 2.8 \times 10^{- 9} m$
$\geq 2.8 \times 10^{- 9} m$
$\leq 2.8 \times 10^{- 12} m$
$< 2.8 \times 10^{- 10} m$

The correct answer is: $greater or equal than 2.8 cross times 10 to the power of negative 9 end exponent m$

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