Question 1:

Dispersion refers to the phenomenon of:

Explanation: Dispersion refers to the phenomenon of separating light into its component colors. This occurs due to the variation in the refractive index of different wavelengths of light.

Question 2:

Scattering of light refers to:

Explanation: Scattering of light refers to the change in direction of light waves due to interaction with particles or objects. This phenomenon is responsible for the blue color of the sky and the red color of sunset.

Question 3:

When light waves encounter a medium, absorption occurs when:

Explanation: Absorption occurs when light waves are absorbed by the medium and converted into other forms of energy, such as heat. The absorbed light is not reflected or transmitted through the medium.

Question 4:

The phenomenon responsible for the colors observed in soap bubbles and oil films is:

Explanation: The colors observed in soap bubbles and oil films are due to the phenomenon of interference. Interference occurs when light waves reflected from the front and back surfaces of a thin film interfere with each other, resulting in constructive and destructive interference patterns.

Question 5:

Polarized sunglasses are designed to:

Explanation: Polarized sunglasses are designed to reduce glare. They block horizontally polarized light waves, which are typically associated with glare from surfaces like water or roads. This helps improve visibility and reduce eye strain.