Modern Physics> photoelectric-work-function...

The photoelectric work function for a metal surface is 4.125 eV. The cut off wavelength for this surface is

(a) 4125 Å

(b) 3000 Å

(c) 6000 Å

(d) 2062.5 Å

Simran Bhatia , 12 Years ago

Grade 11

1 Answers

Amit Saxena

(b)

Let l₀ be cut off wavelength

work function. = = 4.125 × 1.6 × 10^-19

Last Activity: 12 Years ago

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Modern Physics> photoelectric-work-function...

The photoelectric work function for a metal surface is 4.125 eV. The cut off wavelength for this surface is (a) 4125 Å (b) 3000 Å (c) 6000 Å (d) 2062.5 Å

Simran Bhatia , 12 Years ago

Amit Saxena

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The photoelectric work function for a metal surface is 4.125 eV. The cut off wavelength for this surface is

(a) 4125 Å

(b) 3000 Å

(c) 6000 Å

(d) 2062.5 Å

A nucleus X¹⁸⁴ at rest emitt alpha particle With kinetic energy 9.0MeV. The product Nucleus is Y. The values of Binding energy per nucleon of alpha particle & Y differ by 1.5MeV. The values of Binding energy per nucleon of X & Y differ by (n÷230) MeV, then n is

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