A. λ = hc/E
B. λ = h/P
C. λ = c/f
D. λ = 2 d sin θ
Correct Answer:
Option B = λ = h/P
Explanation
I wave-particle duality of matter, the momentum of the sub-atomic particle is given by P = h/λ where h = Planck constant; λ = wave length
=> λ = h/P