Let's analyze the questions individually.
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What happens to light ray X?
- A. It is absorbed by space before it reaches Earth's atmosphere. - This is unlikely, as light from the Sun travels through space and reaches Earth.
- B. It is reflected back into space by particles in Earth's atmosphere. - Some light is reflected, but not all; some will enter the atmosphere.
- C. It is slowed down into a sound wave when it hits Earth's atmosphere. - This is incorrect. Light does not become sound when it enters the atmosphere.
- D. It is transmitted around the planet by particles in Earth's atmosphere. - While some light can scatter, this option is somewhat misleading; "transmitted" implies more continuation without interaction.
The most appropriate answer, depending on the context given in the picture, could be B, or possibly D, but B seems to capture the idea of reflected light.
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What interaction of waves enables police to detect speeding motorists using a radar gun?
- A. Waves reflect when they strike an object. - This is the correct answer. Radar guns work based on the reflection of waves when they hit an object (in this case, a vehicle).
- B. Waves diffract barriers. - This refers to the bending of waves around obstacles, which is not how radar guns function.
- C. Two waves combine, travel together, and form a new wave. - This refers to wave interference, which is not the primary principle for how radar guns work.
In conclusion:
- The best answer for what happens to light ray X is B.
- The correct answer for the radar gun interaction is A.
1 answer