- #1

lemin_rew

- 27

- 0

## Homework Statement

the frequency of A is doubled the threshold frequency of B.

if the wavelength of B is half that of A, what is the difference in speed?

## Homework Equations

E=hv

E=1/2mu^2

c=vλ

## The Attempt at a Solution

the answer is : square root of 3

i tried different ways,,,but just not getting anywhere.

please help