Ex. 55: Photoelectric threshold wave-length of à certain metal is 3315 A.U. Then its work function is (Oct. 2009) (a) (c) 6 x 10-1⁰ J 9 x 10-19 J (b) 7.286 × 10-19 J (d) 9.945 × 10-19 J
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A: To find-λ0=?(K.E.)max=?Given-ϕ0=4.2 eV=4.2×1.6×10-19 JVs=3 Vc=3×108 m/sh=6.63×10-34 Jse=1.6×10-19 C
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Q: Ex 27: The threshold wavelength for silver is O 3800 A. Calculate the photoelectric work function…
A: To find-Work function in eV (W)=?Given-λ0=3800 A0=3.8×10-7 mh=6.63×10-34 Jsc=3×108 m/s1 eV=1.6×10-19…
Q: Ex. 55: Photoelectric threshold wave-length of à certain metal is 3315 A.U. Then its work function…
A: The work function is-W0=hv0=hcλ0W0=6.63×10-34×3×1083315×10-10W0=2×3×10-19W0=6×10-19 J
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