Question

Velma's rocket ship is moving away from Mort at a speed of 0.75c. Mort fires a laser beam toward her spaceship, observing the tip of the laser beam to move away from him at speed c. Velma observes this laser beam to move past her at a speed of 1.75c. 1.25c. 0.25c. 0.75c. None of the above. We know that light is quantized because, in the double slit experiment with light, when one slit is closed, no interference pattern shows up on the screen. when dim light is used, the light hits the screen at tiny separated impact points. an interference pattern shows up on the screen. when one slit is closed, the light hits the screen at tiny separated impact points. when the experiment is done in strong light, no interference pattern shows up on the screen. We proved, using Einstein's two basic principles, that if Velma is moving past Mort then Mort should observe Velma's clock to go slow. This behavior of Velma's clock occurs because, as observed by Mort, the light beam in Velma's light-clock travels at faster than the normal lightspeed. the light beam in her light-clock travels less than 300,000 km during one of Velma's ticks. the light beam in Velma's light-clock travels at slower than the normal lightspeed. the light beam in her light-clock travels further than 300,000 km during one of Velma's ticks. Velma's light-dock shortens along its direction of motion. When an atom undergoes a "quantum jump" into a lower-energy state, the atom absorbs an electron. emits an electron. absorbs a photon. emits a photon. None of the above.Which of the following is a feature of quantum physics but not a feature of Newtonian physics? The observation process must be included as part of the theory. The principle of conservation of energy. Determinism: The future is entirely determined by the present. Force at a distance: Objects can exert forces on other objects that are some distance away, across empty space. All of the above.

Answer 1

ANSWER

Question 16

According the Einstein's relativity, light always has the same speed for all observers, namely the speed of light. Thus, Velma would observe the laser beam to move at c = 3 ∗ 10⁸ m/s. So, answer is none of the above. (Please let me know if you want this question from Galilean relativity, the answer is other on this case).

Question 17

Keep in mind that, the is a demonstration that light and matter can display characteristics of both classically defined waves and particles; moreover, it displays the fundamentally probabilistic nature of quantum mechanical phenomena. This experiment is sometimes referred to as Young's experiment.

Thus, the answer is when dim light is used, the light hits the screen at tiny separated impact points.

If it were not quantized, then we'd get a gradual build up of the complete pattern everywhere at once, but instead we either detect a full photon or nothing at all.

Question 18

The answer is the light beam in her light-clock travels further than 300,000 km during one of Velma's ticks.

Question 19

The answer is emits a photon.

Question 20

The answer is The observation process must be included as part of the theory.

Regards!!!