Question

1. Unpolarized light is incident upon a polarizer whose axis is tilted 30 degrees relative to vertical. What fraction of the light is transmitted through the polarizer?

2.

In a two-slit interference pattern, the pattern becomes fainter as we move away from the central maximum due to

Question 4 options:

	Interference
	Diffraction
	Resolution
	The Rayleigh criterion
	I don't know.

3.

Huygens' principle states that

Question 3 options:

	Monocromatic light incident upon two slits will form an interference pattern.
	Monocromatic light incident upon a single small slit will form an interference pattern.
	Each point on a wave crest can be modeled as a point source for wavelets.
	The optical resolution of the eye is limited.
	None of the above.

4) If light with a wavelength of 550 nm is incident on a pair of slits separated by 0.05 mm, what is the angle to the first off-center bright spot?

5)

Considering two-slit interference, the locations where bright spots are found on the screen are due to

Question 1 options:

	Destructive interference.
	Constructive interference.
	Dispersion.
	Diffraction.
	None of the above.

6)

Which of the following is not a type of beta-decay?

Question 3 options:

	The emission of an electron (and other stuff) from a nucleus
	The emission of an positron (and other stuff) from a nucleus
	The emission of a helium nucleus from a nucleus
	The absorption of an electron into a nucleus.
	All of the above are types of beta decay.

7)  

Why could helium-3 never undergo alpha decay?

Question 4 options:

	There is not enough energy stored in the bonds of helium-3 to allow for alpha decay.
	There are not enough particles in a helium-3 nucleus to undergo alpha decay.
	Alpha decay requires mediation via neutrinos, which will not interact with a helium-3 nucleus.
	None of the above.
	I don't know.

Answer 1