Question

The unit of energy in atomic units is given by met (A) 1 En 16π' εh - (B) 1 En - et 167”meti (C) 1 En me 161's, (D) 1 En met 165 2+2​

Answer 1

Answer:

1amu=1.66×10

27

kg

C= speed of light =3×10

8

m/s

E=mC

2

=1.66×10

27

(3×10

8

)

2

=1.49×10

−10

Joule

1meV=1.6×10

−13

J

E=

1.6×10

−13

1.49×10

−10

=931.6MeV

O

8

16

= mass no. =16

energy for 16amu=16×931.6=14905.6MeV

Mass defect=

C

2

energy

=

C

2

14905.6MeV