PLEASE HELP ME IN THIS QUESTIONS RIGHT ANSWER PLEASE

1. In what ways can light’s behaviour be described?

a. Curve and linear motions

b. Projectile motion

c. Waves and particles

d. Waves and shadows


2. What are knocked off when light photons strike metal surfaces?

a. Electrons

b. Neutrons

c. Positrons

d. Protons


3. What do light particles not able to exhibit as they move along obstacles or

slits?

a. Diffraction c. Photoelectric effect

b. Doppler effect d. Refraction


4. How does refraction happen when light rays travel in a straight line from

air until it encounters another medium like water?

a. The speed of light will be slower as it enters water, making the angle of

refraction (θr) smaller than the angle of incidence (θi).

b. The angle of refraction (θr) will be bigger than the angle of incidence

(θi) because light will travel faster as it enters water.

c. Light rays will refract at a smaller angle because light rays will travel faster in water.

d. Light rays will refract at a bigger angle because light rays will travel
slower in water.

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