Structure of Atom Part 1

Section: Chemistry

Question : 23 of 100

Marks: +1, -0

When light of wavelength 248nm falls on a metal of threshold energy 3.0eV, the de-Broglie wavelength of emitted electrons is ...... Å.
[Round off to the nearest integer]
[Use: √3=1.73,h=6.63×10−34Js
me=9.1×10−31kg,c=3.0×108ms−1
1eV=1.6×10−19J]

[16 Mar 2021 Shift 1]

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