Answer: 2.068*
m
Explanation: According to work energy-theorem , the workdone in accelerating the electron equals the energy it would give off in terms of light.
workdone= qV
energy = hc/λ
q=magnitude of an electronic charge= 1.602*
h= planck constant = 6.626*
c= speed of light =2.998* 
v= potential difference= 6*
λ= wavelength=unknown
by making λ subject of formulae we have that
λ= 
λ = 6.626*
* 2.998*
/ 1.602*
* 6*
λ = 
by doing the necessary calculations, we have that
λ = 2.068*
m
Temperature doesn't do anything, the boiling point of stuff decreases. If you put water in a vacuum chainber then it will start to boil
Answer is A. Because the telescope are use in night
Hi Jason!☺
The answer is going to be
B, they harm the ozone layer.I have taken the quiz and am 100% sure.
~Elisabeth