Question #e27ab

↳Redirected from "An electron in a hydrogen atom drops from energy level n=5 to n=3. What is the energy transition using the Rydberg equation?"
1 Answer
P dilip_k
Oct 6, 2016

If we are to find out the vector of magnitude 3 in the direction of #vec(v)=3hati+4hatj#,then we can have it by taking a scalar multiple of the unit vector of #vec(v)# by 3.

So the required vector

#=3xx1/sqrt(3^2+4^2)xx(3hati+4hatj)#

#=3/5(3hati+4hatj)#

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