6. According to the Michelson and Morley experiments, which of the following is NOT true?

A beam of light that travels parallel to the aether would take longer than the beam that travels perpendicularly to the aether.

The laws of physics are the same in all frames of reference that are moving uniformly.

The speed of light is constant and is independent of the motion of the source or the observer.

Waves had to have some medium to travel through.

7. Given the atomic mass of Beryllium-11 is 11.021658 u, what is the nuclear binding energy of Beryllium-11? (m_proton = 1.0078251, m_neutron = 1.0086649, c² = 931.5 eV/u)

63 eV

1004 eV

65 eV

959 eV

8. The color blue has a wavelength of 475 nm. What is the energy of a blue photon? (h = 6.626 x 10^-34, 1 eV = 1.6 x 10^-19 J)

2.61 eV

1.98 eV

4.56 eV

7.89 eV

11. The half-life of Calcium-47 is 3.91 x 10⁵ seconds. A sample contains 4.11 x 10¹⁶ nuclei. What is the decay constant for this decay?

2.75 x 10^-6 s-1

3.37 x 10^-6 s-1

3.46 x 10^-6 s-1

1.77 x 10^-6 s-1

12. A photon has 1.86 eV of energy. What is the photon's wavelength? (h = 6.626 x 10^-34, 1 eV = 1.6 x 10^-19 J)

665 nm

345 nm

218 nm

428 nm

13. Which of the following relativistic statements seems to contradict what we know in classical physics?

A beam of light that travels parallel to the aether would take longer than the beam that travels perpendicularly to the aether.

The laws of physics are the same in all frames of reference that are moving uniformly.

The speed of light is constant and is independent of the motion of the source or the observer.

Waves had to have some medium to travel through.