A monochromatic neon lamp with wavelength of 670.5 \(nm\) illuminates a photo-sensitive material which has a stopping voltage of \(0.48 V\). What will be the stopping voltage if the source light is changed with another source of wavelength of \(474.6 nm\) ?

[JEE Main 2021, 27 Aug (Shift 2)]

Question

A monochromatic neon lamp with wavelength of 670.5 \(nm\) illuminates a photo-sensitive material which has a stopping voltage of \(0.48 V\). What will be the stopping voltage if the source light is changed with another source of wavelength of \(474.6 nm\) ?

[JEE Main 2021, 27 Aug (Shift 2)]

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