Waves in Different Media

Front

What determines how much of a wave is reflected or transmitted when it meets a new medium?

Back

The properties of the two media.

Front

What happens to a laser when it travels through glass?

Back

The laser slows down through the glass and speeds up when it reaches air.

Front

Which of the following is NOT a result of refraction?

Back

A camera filter makes everything appear darker.

Front

What is true about light refraction?

Back

The more light waves slow in a new medium, the more they bend.

Front

How much a wave refracts depends in part on what?

Back

The angle of the wave.

Front

Define refraction.

Back

Refraction is the bending of waves when they enter a medium where their speed is different.

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second.

Front

What happens to the wavelength of a wave when it enters a denser medium?

Back

The wavelength decreases.

Front

What is total internal reflection?

Back

Total internal reflection occurs when a wave hits a boundary at an angle greater than the critical angle, causing it to reflect entirely back into the medium.

Front

What is the critical angle?

Back

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