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An electromagnetic wave of wavelength \(\lambda\) is incident on a photosensitive surface of negligible work function. I…

Q1

An electromagnetic wave of wavelength \(\lambda\) is incident on a photosensitive surface of negligible work function. If the photoelectrons of mass m emitted from this surface have de Broglie wavelength \({\lambda }_{1}\) then

a

\(\lambda =\left(\frac{2mc}{h}\right){{\lambda }_{1}}^{2}\)

b

\(\lambda =\left(\frac{mc}{h}\right){{\lambda }_{1}}^{2}\)

c

\(\lambda =\left(\frac{2m}{h}\right){{\lambda }_{1}}^{2}\)

d

\(\lambda =\left(\frac{2c}{h}\right){{\lambda }_{1}}^{2}\)

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