The index of refraction, n, of a material is a measure of how the speed of light changes. What can be said about the speed of light in a material with n=1.5 compared to a material with n=1.7?

A. It is the same for both.
B. It is slower in the n=1.7 material.
C. It is slower in the n=1.5 material.
D. It depends on the wavelength of the light.


Ans: B. It is slower in the n=1.7 material.

Physics & Space Science

You might also like to view...

At what temperature in Fahrenheit does water boil?

A. 32 degrees F; B. 100 degrees F; C. 212 degrees F; D. 261 degrees F

Physics & Space Science

A slit of variable width illuminated by light of wavelength ? is widened until the first order diffraction minimum moves out to a distance infinitely far away from the brightest location in the central maximum. In terms of the wavelength, the width of the slit is then

A.

0.

B.
.

C.
?.

D.
.

E.
2?.

Physics & Space Science

According to Wein's law, the wavelength of the peak energy will be ________ if the temperature of the blackbody is doubled

A) unchanged B) quadrupled C) doubled D) halved E) quartered

Physics & Space Science

A simple harmonic oscillator has an amplitude of 3.50 cm and a maximum speed of 28.0 cm/s. What is its speed when the displacement is 1.75 cm?

A) 12.0 cm/s B) 24.2 cm/s C) 14.2 cm/s D) 15.0 cm/s E) 17.0 cm/s

Physics & Space Science