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CBSE Class 12 Physics 2020 Outside Delhi Set 1 Paper
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Question : 5 of 37
Marks:
+1,
-0
The kinetic energy of a proton and that of an α -particle are 4 eV and 1 eV , respectively. The ratio of the de-Broglie wavelengths associated with them, will be :
Solution:
(b) 1 : 1
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