Snell's Law

Front

What is Snell's Law?

Back

Snell's Law describes how light refracts when it passes from one medium to another, defined by the equation n1 * sin(θ1) = n2 * sin(θ2), where n is the index of refraction and θ is the angle of incidence or refraction.

Front

What is the velocity of light in vacuum?

Back

The velocity of light in vacuum is 3 x 10^8 m/s.

Front

How do you calculate the index of refraction?

Back

The index of refraction (n) can be calculated using the formula n = c/v, where c is the speed of light in vacuum and v is the speed of light in the medium.

Front

What is the index of refraction of air?

Back

The index of refraction of air is approximately 1.00.

Front

If light slows down to 1.88 x 10^8 m/s, what is the index of refraction?

Back

The index of refraction is 1.60.

Front

What does the index of refraction measure?

Back

The index of refraction measures how much light bends or refracts when entering a medium.

Front

What is the angle of incidence?

Back

The angle of incidence is the angle between the incident ray and the normal to the surface at the point of incidence.

Front

What is the angle of refraction?

Back

The angle of refraction is the angle between the refracted ray and the normal to the surface at the point of refraction.

Front

What happens to light when it enters a denser medium?

Back

When light enters a denser medium, it slows down and bends towards the normal.

Front

What is the index of refraction of crown glass?

Back

The index of refraction of crown glass is approximately 1.532.