- #1

alijan kk

- 130

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## Homework Statement

Q; In an electron gun of television set, an electron with initial speed of 10^3m/s enters a region where it is electrically accelerated. It emerges out of this region after 1micro sec with speed of 4×10^5 m/s.

(a) Find the acceleration.

## Homework Equations

vf= vi+at

## The Attempt at a Solution

vf = vi+at

400000= 1000+a*0.000001

400000-1000= a*0.000001

399000=a*0.000001

399000/0.000001= a

3.99×10^11= a

a= 3.99×10^11

The ans in book is 3.99×10^9

Which ans is right ?

Any help would be appreciated :-) :-D ,

Thank you