Physics · 2021
JEE Main · 27 August 2021, Shift 2 · Q19
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…
A monochromatic neon lamp with wavelength of $\displaystyle 670.5$ nm illuminates a photo-sensitive material which has a stopping voltage of $\displaystyle 0.48$ V . What will be the stopping voltage if the source light is changed with another source of wavelength of $\displaystyle 474.6$ nm ?
Official answer
(3)
1.$\displaystyle 25$ V
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.