refractive index 1

refractive index 1

The speed of light

All Electromagnetic waves (light, microwaves, radio, infrared, ultraviolet, gamma  etc) travel in the air (or a vacuum) at 300,000,000 m/s (3x108 m/s)

Open Ended

How fast does light travel in glass (n=1.5)

Open Ended

How fast does light travel in air?

Open Ended

How fast does light travel in diamond (n=2.4)

Fill in the Blanks

If some red light has a wavelength of 700nm in air, what is its wavelength in glass ((in nm)? (n=1.5)

Multiple Choice

What happens to the wavelength of light as it goes from air into water?

• slows down

• speeds up

• stays the same speed

Open Ended

If some red light has a wavelength of 700nm in air, what is its frequency in glass?