Question

Calculate the energy gap for nb tc is equals to 9.25 kelvin at temperature is equal to zero kelvin and find the minimum proton wavelength needed to break the cooper pair

Answer 1

The mass of the moon is (1/8) of the earth but the gravitational pull is (1/6) of the earth. It is due to the fact that:

A .

moon is the satellite of the earth

B .

the radius of the earth is (8/6) of the moon

C .

the radius of the earth is (8/6) of the moon

D .

the radius of the moon in (6/8) of the earth

gEgM=RE2GMERM2G(ME/8)=8RM2RE2              ....(i)

where the sunscripts M and E are for the moon and the earth respectively.

Given, gEgM=61                             .....(ii)

From (i) and (ii), we get