Question

6 multiple choice 2 points a car radio is tuned to the frequency being emitted from two transmitting towers. as the car moves at constant speed past the towers, as shown in the diagram, the sound from the radio repeatedly fades in and out. this phenomenon can best be explained by refraction interference reflection resonance 7 multiple choice 2 points when a light ray is reflected from a surface, compared to the angle of incidence, the angle of reflection is less greater

Explanation:

• For question 6: Interference occurs when two or more waves overlap. In this case, the radio waves from the two towers interfere. When they interfere constructively, the sound is loud (fades in), and when they interfere destructively, the sound is soft (fades out). Refraction is the bending of waves due to a change in medium, reflection is the bouncing back of waves, and resonance is the phenomenon where a system vibrates at maximum amplitude at certain frequencies.
• For question 7: According to the law of reflection, the angle of incidence ($\theta_i$) is equal to the angle of reflection ($\theta_r$), i.e., $\theta_i=\theta_r$. So it is neither less nor greater.

Answer:

1. B. interference
2. equal (Since the options for question 7 in the provided text are incomplete. But based on the law of reflection, the correct relationship is that the angle of reflection is equal to the angle of incidence)