The work function of a metal is 4.2 eV. If light of waveleng... — NEET TEST | Mockzy | Mockzy

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The work function of a metal is 4.2 eV. If light of wavelength 2000 Å falls on it, the maximum kinetic energy of the emitted photoelectrons is (take hc ≈ 12400 eV Å):

A

2.0 eV

B

4.2 eV

C

6.2 eV

D

1.8 eV

Two balls, A and B, are projected simultaneously from two points on the same lev

The equivalent capacitance between points A and B in a series combination of thr

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