Physics Semester 1

Front

What is a 'pupil' in our eyes?

Back

A hole to let light pass through.

Front

What does 'CONCAVE' mean?

Back

Diverging.

Front

What is a 'medium'?

Back

Material that light passes through.

Front

What is an 'iris' in our eyes?

Back

A muscle that controls the pupil to focus light.

Front

What does 'CONVEX' mean?

Back

Converging.

Front

What is the function of the lens in the eye?

Back

To focus light onto the retina.

Front

What is refraction?

Back

The bending of light as it passes from one medium to another.

Front

What is the law of reflection?

Back

The angle of incidence is equal to the angle of reflection.

Front

What is total internal reflection?

Back

The complete reflection of light back into a medium when it hits the boundary at a certain angle.

Front

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

Back

A convex lens converges light rays, while a concave lens diverges them.