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Question

Work function is the energy required
  1. To excite an atom
  2. To produce X-rays
  3. To eject an electron just out of the surface
  4. To explode the atom

A
To excite an atom
B
To produce X-rays
C
To eject an electron just out of the surface
D
To explode the atom
Solution
Verified by Toppr

Work function refers to the minimum frequency of photons required to eject an electron from its surface.
ϕ=hυo

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