PLEASE ANSWER WITH EXPLANATION

9. Wave interference can occur in the following except:

1. Two rocks are thrown at the same time into a body of water
2. The same song played on two speakers
3. Two different light sources side by side
4. Light reflected from a film of oil floating on water

10. Which of the following is/are true:

1. Plane waves of light of a single wavelength are needed for interference to work
2. Diffraction can occur using different light sources
3. I only b. II only c. both I and II d. Neither I and II

11. Why does scattering of light occur?

1. Light rays are blocked and reflected to all directions by the clouds or particles in the air
2. Light rays are passing through and refracted to all directions by the clouds or particles in the air
3. Light rays are blocked and refracted to all directions by the clouds or particles in the air
4. Light rays are passing through and are dispersed by raindrops acting as multiple prisms

12. Which of the following must remain unchanged to have a constant velocity for an object in motion?

1. Speed only
2. Friction and speed only
3. Speed and mass only
4. Speed and direction of travel

13. The following are characteristics of protons except

1. It can interact with other particles like electrons
2. It can carry energy and momentum
3. It has most energy
4. It has a mass equal to 1.67 x 10 kg

What does the dark image binge patterns of light wave on the screen in double slit experiment show?

1. Destructive interference
2. Reflected interference
3. Constructive interference
4. Diffracted interference

46. Why is the spectrum of light separated into the components of solar when while light is directed to a prism?

1. The different colors in the white light bend away from the normal line at different angles when entering prism ingestion
2. The different colors in the white light bend towards the normal line at different angles when entering prism
3. The different colors in the white light bend away from the normal at same speed to each other when entering prism
4. The different colors in the white light bend towards the normal at same speed to each other when entering prism