Question

G.
Tick () the correct option:
1.
Cat's urine glows under a black / red light.
2.
Aang Saan Suu Kyi was the leader of opposition in Myanmar / South Africa.
3.
Opaque / Transparent is the thing that which cannot be seen through.
4.
The rule of Shah Jahan / Akbaris called the Golden rule of Mughal dynasty,
5.
Addition / Edition is an issue of a book.​

Answer 1

Answer:

The packing efficiency is the fraction of the crystal (or unit cell) actually occupied by the atoms. It must always be less than 100% because it is impossible to pack spheres (atoms are usually spherical) without having some empty space between them.