30. The speed of FM waves will be observed to be c = 2.9979 ´ 10 8 m/s when the

Question

30. The speed of FM waves will be observed to be c = 2.9979 ´ 108 m/s when the antenna emitting the waves is

a.

at rest relative to the receiving antenna.

b.

moving to the right of the detecting antenna at 0.5 c.

c.

moving to the left of the detecting antenna at 0.5 c.

d.

moving as described in (a), (b) or (c) above.

e.

moving at 2.9979 ´ 108 m/s.

a.

at rest relative to the receiving antenna.

b.

moving to the right of the detecting antenna at 0.5 c.

c.

moving to the left of the detecting antenna at 0.5 c.

d.

moving as described in (a), (b) or (c) above.

e.

moving at 2.9979 ´ 108 m/s.

Explanation / Answer

The speed of FM waves will be observed to be c = 2.9979 ´ 108 m/s when the antenna emitting the waves is at rest relative to the receiving antenna, moving to the right of the detecting antenna at 0.5 c.

moving to the left of the detecting antenna at 0.5 c.

So the answer will be:

(d). moving as described in (a), (b) or (c) above.

moving to the left of the detecting antenna at 0.5 c.

So the answer will be:

(d). moving as described in (a), (b) or (c) above.

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