Answer with Explanation:
We are given that
Momentum of photon=
a. We have to find the energy of this photon.
Speed of photon=
We know that
Momentum=p=
Where
h=
J-s=Plank's constant
Wavelength of photon


m


J
Hence, the energy of photon=
J
B.Energy of photon in electron volt=
Energy of photon=
C.Wavelength of photon =
Answer:
1. S-S Repulsion N-S Attraction
2. S-N Attraction N-N Repulsion
Explanation:
1. S-S Repulsion N-S Attraction
2. S-N Attraction N-N Repulsion
(89000/102000)×100
=87.25%
(92000/104000)×100
=88.46%
efficiency is (output/input)×100
if u get confused which way input and output should go, remember the smaller value is always output and it's above in the fraction, then only it's possible to get a efficiency lower than 100.