What is a reflection?

The video tutorial explains the concept of reflection, highlighting how different surfaces reflect light. Dark and dull surfaces absorb most light, while rough surfaces scatter it. Smooth, shiny surfaces like mirrors reflect light effectively, allowing us to see clear images. Mirrors are used in various practical applications, such as in dentistry, to view areas not directly visible.

What happens to light when it hits dark or dull surfaces?

• It changes color.

• It is mostly absorbed.

• It is scattered in all directions.

• It is completely reflected.

Which type of surfaces are known to scatter light?

• Smooth surfaces

• Uneven or rough surfaces

• Transparent surfaces

• Metallic surfaces

Why are glass, water, and metal considered excellent reflectors?

• They absorb all the light.

• They change the color of the light.

• They reflect almost all the light that hits them.

• They scatter light in all directions.

What is a unique feature of mirrors in terms of light reflection?

• They reflect light in one direction.

• They reflect light in multiple directions.

• They absorb light.

• They change the light's wavelength.

How do mirrors help us in places like dental offices?

• By scattering light to illuminate the entire room

• By absorbing light to reduce glare

• By changing the color of light for better visibility

• By reflecting light to see areas not directly visible