An electron of mass m travelling with speed u collides with an atom and its speed is
reduced to v. the speed of the atom is unaltered, but one of its electrons is excited
to a higher energy level and then returns to its original state, emitting a photon of
light. show that the frequency of this photon is given by --
m(u² -2²)/2h

u can delete ur account.

1. go on google and write

2 open this and click on your profile pic and if your profile is not appearing, then u have to log in.

3. when u click on your profile pic, there appears four options on the top.

4. click on the 1st option and scroll down and go at the bottom.

5. click on edit profile.

6. there appears a option 'prefernces' and at that option at the right side , 'edit' is written.

7. click on the edit option.

8. there is a option " i want to delete my account" and click on that.

hope this u

and ur welcm

: )

can u provide the graph and if its not possible

then i can tell u the segment where the

average time interval starts degrading is the segment where the car is slowing down