Optics - 2

A prerequisite for the process of internal total reflection is that the light travels from a larger refractive index medium to a smaller refractive index medium.

• True

• False

The internal total reflection process can be used in optical waveguides.

• True

• False

The crticical angle of the internal total reflection does not depend on the refractive index of the media

• True

• False

Can the internal total reflection process be used in optical waveguides?

• Yes

• No

What is the phenomenon that allows for the internal total reflection process?

• Refraction

• Reflection

Dispersion - the wavelength dependence of the refractive index.

• True

• False

The wavelength dependence of the refractive index is linear in nature.

• True

• False

Larger the wavelength of light, larger the refractive index

• True

• False

What is the apparent depth of the 1.71 m deep swimming pool when viewed from above?

The refractive index of water 1.32

Select one of the answers.

• 1.2 m

• 1.3 m

• 1.5 m

• 1.9 m