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Please please answer question 18 fast....please answer fast with explanation

Please please answer question 18 fast....please answer fast with explanation

Question Image
Grade:12th pass

1 Answers

Arun
25763 Points
3 years ago
Dear Vaishali
 
Energy of electron at stable state= E= mC²
the momentum of photon by the debrogli equation is;
P = h/λ
p = h/ hc/e
p= E/c
p= mC²/C
p= mC
so,
p = 9.1 x 10?³¹ x 3 x 108
p = 27.3 x 10?²³ kgm/s
p = 2.73 x 10?²² kgm/s
 
Regards
Arun (askIITians forum expert)

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