JEE Main 2016PhysicsDual Nature of MatterHardMCQ

JEE Main 2016Dual Nature of Matter Question with Solution

JEE Main 2016 (09 Apr Online)

Question

When photons of wavelength λ1 are incident on an isolated sphere, the corresponding 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:

Choose an option

Show full solutionCorrect option: D
Correct answer
Dhce1λ3+12λ2-32λ1

Step-by-step explanation

hcλ1=hcλ0+eV ...(i)

hcλ2=hcλ0+3eV ...(ii)

hcλ3=hcλ0+eV ....(iii)

Equation (i) and (ii) 

32λ1-12λ2=1λ0

hcλ3-hc32λ1-12λ2=eV

hce1λ3-32λ1+12λ2=V

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About this question

This is a previous-year question from JEE Main 2016, covering the Dual Nature of Matter chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.