When photons of wavelength λ 1 are incident on an isolated sphere, the corresponding stopping potential…

1. $\frac{\mathrm{h}\mathrm{c}}{\mathrm{e}}\left[\frac{1}{{\mathrm{\lambda }}_3}+\frac{1}{{\mathrm{\lambda }}_2}-\frac{1}{{\mathrm{\lambda }}_1}\right]$
2. $\frac{\mathrm{h}\mathrm{c}}{\mathrm{e}}\left[\frac{1}{{\mathrm{\lambda }}_3}+\frac{1}{2{\mathrm{\lambda }}_2}-\frac{1}{{\mathrm{\lambda }}_1}\right]$
3. $\frac{\mathrm{h}\mathrm{c}}{\mathrm{e}}\left[\frac{1}{{\mathrm{\lambda }}_3}-\frac{1}{{\mathrm{\lambda }}_2}-\frac{1}{{\mathrm{\lambda }}_1}\right]$
4. $\frac{\mathrm{h}\mathrm{c}}{\mathrm{e}}\left[\frac{1}{{\mathrm{\lambda }}_3}+\frac{1}{{2\mathrm{\lambda }}_2}-\frac{3}{{2\mathrm{\lambda }}_1}\right]$

Solution

Asked in: JEE Main 2016 (09 Apr Online)

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