Light and Lenses

Front

What is light?

Back

Light is a form of energy that travels in waves and can be seen by the human eye.

Front

What is the speed of light in hot air compared to other mediums?

Back

Light travels faster in hot air than in solids, liquids, or cold air.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, such as from air to water.

Front

What happens to light when it passes through a concave lens?

Back

Light rays diverge when they pass through a concave lens, making the lens thinner in the middle.

Front

What is the index of refraction?

Back

The index of refraction is a measure of how much light bends when it enters a material.

Front

Which material has the highest index of refraction: air, water, or glass?

Back

Glass has the highest index of refraction among the three materials.

Front

Does temperature affect the speed of light?

Back

Yes, temperature can affect the speed of light in different mediums.

Front

What is reflection?

Back

Reflection is the bouncing back of light when it hits a surface.

Front

What is a convex lens?

Back

A convex lens is thicker in the middle and converges light rays to a point.

Front

What is the difference between a concave lens and a convex lens?

Back

A concave lens is thinner in the middle and diverges light rays, while a convex lens is thicker in the middle and converges light rays.