Question

20 Mev = how many *Erg*
a) 32 x 10-13
b) 3.2 x10-6
c) 32 x 10-6
d) 3.2 x 10-8

with explanation​

Answer 1

Answer:

662

Erg is the dimension of energy in CGS (centimeter-gram-second) system of units.

Therefore, 1erg=10

−7

joules.

Now, the energy of photon is 3 x 10

−19

J.

Using E=

λ

h×c

,

Wavelength (nm)=

3×10

−19

J

3×10

8

m/s×6.626×10

−34

Js=662nm.