Question

1)

The dispersion of a light beam refers to:

Group of answer choices

Bending the light beam around a corner
Bouncing the beam off of a surface
Cancelling some colors of light by destructive interference
Making all parts of the beam oscillate the same way
Bending different colors of light different amounts

2)

The resolving power of our eye is limited by:

Group of answer choices

diffraction
reflection
polarization
refraction
dispersion

Answer 1

1) Dispersion of light refers to the splitting of white light in various components with the help of a dispersing device ( like prism ). This splitting occurs due to difference in refractive index for different colors. Due to this difference some colors travel more distance than others and colors bend at the edge (because of refraction) by different amount.

Therefore Dispersion occur due to bending of different color by different amount.

2) Resolving power is the ability to distinguish between two objects clearly. Resolving power is limited by the angular size ratio of object's size with distance, which is also known as differection limit.

Therefore resolving Powe of eye is limited by differection.