An experiment gives the slope of the versus graph as

PHYSICS · Single correct · A Level · Physics · Particles and radiation · Particles and radiation

Problem

An experiment gives the slope of the V0V_{0} versus ν\nu graph as (4.20±0.15)×10−15 V s(4.20 \pm 0.15)\times10^{-15}\,\text{V\,s}. Calculate Planck’s constant hh with its absolute uncertainty. (Use e=1.602×10−19 Ce = 1.602\times10^{-19}\,\text{C}.) (a) (6.73±0.96)×10−34 J s(6.73 \pm 0.96)\times10^{-34}\,\text{J\,s} (b) (6.73±0.15)×10−34 J s(6.73 \pm 0.15)\times10^{-34}\,\text{J\,s} (c) (6.73±0.24)×10−34 J s(6.73 \pm 0.24)\times10^{-34}\,\text{J\,s} (d) (6.73±0.04)×10−34 J s(6.73 \pm 0.04)\times10^{-34}\,\text{J\,s}

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