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JEE Main 27 July 2021 Shift 2 Solved Paper
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Question : 45
Total: 90
If the Thompson model of the atom was correct, then the result of Rutherford's gold foil experiment would have been:
[27 Jul 2021 Shift 2]
All of the
α
-particles pass through the gold foil without decrease in speed.
α
-Particles are deflected over a wide range of angles.
All
α
-particles get bounced back by
180
°
α
-Particles pass through the gold foil deflected by small angles and with reduced speed.
Validate
Solution:
As in Thomson model, protons are diffused (charge is not centred)
α
- particles deviate by small angles and due to repulsion from protons, their speed decreases.
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