Reflection, Refraction, Absorption

Front

What is absorption in the context of light waves?

Back

Absorption is the process by which light waves are taken in by a material, converting the light energy into heat. For example, a black shirt absorbs more light and feels hotter than a white shirt.

Front

What is refraction?

Back

Refraction is the bending of light waves as they pass from one medium to another, caused by a change in speed. For example, light bending when it enters water from air.

Front

What is reflection?

Back

Reflection is the bouncing back of light waves when they hit a surface. For example, seeing your image in a mirror.

Front

Which color of light has the highest energy?

Back

Violet light has the highest energy among visible colors.

Front

What happens to the speed of light when it enters a denser medium?

Back

The speed of light decreases when it enters a denser medium, causing it to bend.

Front

What is the law of reflection?

Back

The law of reflection states that the angle of incidence is equal to the angle of reflection.

Front

What is the difference between reflection and refraction?

Back

Reflection involves bouncing back of light, while refraction involves bending of light as it passes through different media.

Front

What is a prism and how does it relate to refraction?

Back

A prism is a transparent optical element that refracts light, separating it into its component colors.

Front

What is the role of absorption in solar energy?

Back

Absorption is crucial in solar energy as solar panels absorb sunlight to convert it into electricity.

Front

How does color affect absorption of light?

Back

Darker colors absorb more light and heat, while lighter colors reflect more light.