When photons of wavelength \lambda_1 are incident on an isolated sphere, thecorresponding stopping potential is found to be V. When photons of wavelength \lambda_2 are used, the corresponding stopping potential was thrice that of the above value. If light of wavelength \lambda_3 is used then find the stopping potential for this case : [Main 9 Apr 2016]

Correct Answer is : hce[1λ3+12λ2−32λ1]

{hc}/e[1/\lambda_3-1/\lambda_2-1/\lambda_1]

{hc}/e[1/\lambda_3+1/\lambda_2-1/\lambda_1]

{hc}/e[1/\lambda_3+1/{2\lambda_2}-3/{2\lambda_1}]

{hc}/e[1/\lambda_3+1/{2\lambda_2}-1/\lambda_1]

JEE Main 09 April 2016 Paper

Section: Physics

Question : 21 of 90

Marks: +1, -0

When photons of wavelength λ1 are incident on an isolated sphere, thecorresponding stopping potential is found to be V. When photons of wavelength λ2 are used, the corresponding stopping potential was thrice that of the above value. If light of wavelength λ3 is used then find the stopping potential for this case :

[Main 9 Apr 2016]

hc
e
[
1
λ3
−
1
λ2
−
1
λ1
]
hc
e
[
1
λ3
+
1
λ2
−
1
λ1
]
hc
e
[
1
λ3
+
1
2λ2
−
3
2λ1
]
hc
e
[
1
λ3
+
1
2λ2
−
1
λ1
]

Validate

Go to Question:

Prev Question

Next Question