Refraction and Light Behavior

The video tutorial explains Snell's Law, a mathematical relationship that describes how light bends when it passes from one medium to another. It covers the speed of light in different mediums, how to measure angles of incidence and refraction, and how to use Snell's Law to calculate these angles. An example problem is solved to demonstrate the application of Snell's Law.

Who developed Snell's Law?

• Willebrord Snell

• Isaac Newton

• Galileo Galilei

• Albert Einstein

What happens to light when it travels from air into water?

• It speeds up and bends away from the normal.

• It continues in a straight line.

• It slows down and bends towards the normal.

• It reflects back into the air.

What is the speed of light in a vacuum?

• 3 * 10^6 m/s

• 3 * 10^7 m/s

• 3 * 10^8 m/s

• 3 * 10^9 m/s

What is the angle between the incident ray and the normal line called?

• Angle of deviation

• Angle of incidence

• Angle of refraction

• Angle of reflection

If the second medium is faster than the first, how does the light ray bend?

• It reflects back

• Away from the normal line

• Towards the normal line

• It does not bend

What does the index of refraction compare?

• Speed of light in air to speed in a vacuum

• Speed of light in a vacuum to speed in a medium

• Speed of light in water to speed in air

• Speed of sound in air to speed in water

What is the index of refraction for water?

• 1.00

• 1.50

• 1.33

• 2.00

In the problem-solving example, what is the angle of incidence?

• 55°

• 35°

• 25°

• 45°

What is the angle of refraction calculated in the example problem?

• 15°

• 45°

• 25°

• 35°

Which equation is used to calculate the angle of refraction?

• Pythagorean Theorem

• Snell's Law

• Einstein's Equation

• Newton's Law