Light (5.6C)

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another due to a change in its speed.

Front

How does a convex lens affect light?

Back

A convex lens converges light rays that are initially parallel to its principal axis.

Front

What role does the objective lens play in a telescope?

Back

The objective lens gathers light from distant objects and focuses it to create a clear image.

Front

What is the relationship between the angle of incidence and the angle of refraction?

Back

According to Snell's Law, the angle of incidence is related to the angle of refraction by the indices of refraction of the two media.

Front

What is the index of refraction?

Back

The index of refraction is a measure of how much light slows down in a medium compared to its speed in a vacuum.

Front

What happens to light when it passes through a prism?

Back

Light is refracted and dispersed into its constituent colors when it passes through a prism.

Front

What is total internal reflection?

Back

Total internal reflection occurs when light attempts to move from a denser medium to a less dense medium at an angle greater than the critical angle.

Front

What is the critical angle?

Back

The critical angle is the angle of incidence above which total internal reflection occurs.

Front

How does light behave when it passes through different mediums?

Back

Light changes speed and direction when it passes through different mediums, leading to refraction.

Front

What is the difference between reflection and refraction?

Back

Reflection is the bouncing back of light from a surface, while refraction is the bending of light as it passes through different media.