When a surface 1 cm thick is illuminated by light of wavelength '… - Vidyadip

MCQ

When a surface $1 cm$ thick is illuminated by light of wavelength ' $\lambda$ ', the stopping potential is ' $V_0$ '. When the same surface is illuminated by light of wavelength ' $3 \lambda$ ', the stopping potential is $\frac{ V _0}{6}$. The threshold wavelength for the metallic surface is

A
2λ
B
3λ
C
4λ
✓
5λ

✓

Answer

Correct option: D.

5λ

D

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