Determine the energy required to accelerate an electron between each of the following speeds. (a) 0.500c to 0.900c mev (b) 0.900c to 0.942c mev

The energy required to accelerate an electron is 0.582 Mev and 0.350 Mev.

Explanation:

We know that,

Mass of electron

Rest mass energy for electron = 0.511 Mev

(a). The energy required to accelerate an electron from 0.500c to 0.900c Mev

Using formula of rest,

(b). The energy required to accelerate an electron from 0.900c to 0.942c Mev

Using formula of rest,

Hence, The energy required to accelerate an electron is 0.582 Mev and 0.350 Mev.

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)