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Dual Nature of Radiation question

2016 · Shift 1 · Q43
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Dual Nature of Radiation question

2016 · Shift 1 · Q43

JEE AdvancedPhysicsDual Nature of RadiationMCQ+3 / −1
In a historical experiment to determine Planck's constant, a metal surface was irradiated with light of different wavelengths. The emitted photoelectron energies were measured by applying a stopping potential. The relevant data for the wavelength (λ\lambdaλ) of incident light and the corresponding stopping potential (V0) are given below:

λ(μm)\lambda \left( {\mu m} \right)λ(μm) V0(Volt)
0.3 2.0
0.4 1.0
0.5 0.4


Given that c = 3 ×\times× 108 ms-1 and e = 1.6 ×\times× 10-19 C, Planck's constant (in units of J-s) found from such an experiment is) :
  1. A
    6.0 ×\times× 10-34
  2. B
    6.6 ×\times× 10-34
  3. C
    6.4 ×\times× 10-34
  4. D
    6.8 ×\times× 10-34
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