Question

Single concave spherical mirrors produce images that * (A) could be smaller than, larger than, or...

Single concave spherical mirrors produce images that *

(A) could be smaller than, larger than, or the same size as the actual object, depending on the placement of the object.

(B) are always smaller than the actual object.

(C) are always larger than the actual object.

(D) are always the same size as the actual object.

(E) are always real.

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If a radio transmitter has a vertical antenna, should a receiver’s antenna be vertical or horizontal to obtain the best reception? *

(A) vertical

(B) horizontal

(C) doesn’t matter

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Answer #1

1) The image formed in a concave mirror can be smaller, larger or even the same size as the object. So the correct option is:

(A) could be smaller than, larger than, or the same size as the actual object, depending on the placement of the object.

2) For best reception , the receiver’s antenna should have the same orientation. So the correct option is:

(A) vertical


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