The difference between threshold wavelengths for two metal surfaces … and … having work function … and … in … is: … Given, hc …

Option B. Threshold wavelength (…) is the maximum wavelength of light required to remove an electron from a metal surface, i.e., to overcome the work function (…). The relationship between work function and threshold wavelength is given by:

Dual Nature of Radiation

JEE Main 2023 · 13 Apr, Morning shift · Q6660

PhysicsHard145×since 2002Q6660

The difference between threshold wavelengths for two metal surfaces

\mathrm{A}

and

\mathrm{B}

having work function

\phi_{A}=9 ~\mathrm{eV}

and

\phi_{B}=4 \cdot 5 ~\mathrm{eV}

\mathrm{nm}

is:

\{

Given, hc

=1242 ~\mathrm{eV} \mathrm{nm}\}

Dual Nature of Radiation

JEE Main 2023 · 13 Apr, Morning shift · Q6660

PhysicsHard145×since 2002Q6660

The difference between threshold wavelengths for two metal surfaces

\mathrm{A}

and

\mathrm{B}

having work function

\phi_{A}=9 ~\mathrm{eV}

and

\phi_{B}=4 \cdot 5 ~\mathrm{eV}

\mathrm{nm}

is:

\{

Given, hc

=1242 ~\mathrm{eV} \mathrm{nm}\}

Dual Nature of Radiation

More on Dual Nature of Radiation

Dual Nature of Radiation

More on Dual Nature of Radiation