Quiz on Unit 1 & 2

When a thin film or Soap bubble is illuminated with white light, multiple colors appear. This is due to

• Polarization  

• Interference

• Reflection

• Diffraction

The intensity of the secondary maxima in a diffraction pattern is

• Lower than the central maximum

• Equal to the central maximum

• The same for all maxima

• Greater than the central maximum

The possible number of bravais lattice are

The number of atoms per unit cell in a F.C.C Structure is

• 3

• 4

• 5

• 6

In a uni axial crystal, the ordinary ray

• Does not obey Snell’s law

• Is absorbed

• Is refracted at the same speed as the extraordinary ray

• Obeys Snell’s law

Which of the following is an example of a primitive cell?

• Face-centered cubic

• Simple cubic

• Body-centered cubic

• Hexagonal

In the Laue method, the diffraction pattern consists of

• Randomly scattered dots

• Sharp lines

• Concentric circles

• Symmetrically arranged spots

What is coherence in the context of wave phenomena

• The intensity of a wave       

• The phase relationship between two or more waves    

• The frequency of a wave

• All the above

When white light is incident on a diffraction grating, the light diffracted more will be...............

Nicol prism based on the principle of.............................