When electromagnetic radiation passes through a conductor, its presence is detec

Question

When electromagnetic radiation passes through a conductor, its presence is detected by the fact that it oscillates the electrons in the conductor, producing an AC current... as in an antenna. How do we detect that gravitational radiation is passing through an object?

1. The wave bends laser beams so that they move in a circle.

2. The wave causes conduction electrons to spin in tiny circles.

3. The wave causes clocks to run much slower than normal.

4. The wave causes physical objects to change very slightly in size.

5. The wave causes clocks to stop, momentarily.

6. The wave causes clocks to run much faster than normal.

7. The wave causes a very tiny oscillation in the local temperature of the system the wave passes through.

Explanation / Answer

4. The wave causes physical objects to change very slightly in size.


Gravitational waves passing through an object distort that object’s shape, stretching and squeezing it in the direction the wave is travelling.

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