3 years ago

I. Choose the correct answer:

Physics

1 answer:

Ann [662]3 years ago

3 0

Answer:

1. c

2. b

3. a

4. a

5. a

6. a

7. d

8. b

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two pulse waves a and b arrive at a point in a medium simustaneously. if the amplitude of wave a is 35 units the amplitude of wa

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It depends on the type of interference.
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For destructive, subtract them |35 - 41| = 6 units

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The Cassegrain design provides more compact (shorter) telescopes. Why? (Examine figures 2.4.2 and 2.4.3). The shorter design is

Ipatiy [6.2K]

Answer:

Because the light reflects multiple times until it gets to the Cassegrain focus.

Explanation:

The Cassegrain design can be seen in a reflecting telescope. In this type of design the light is collected by a concave mirror, and then intercepted by a secondary convex mirror, and sends it down to a central opening in the primary mirror (concave mirror), in which a detector is placed (Cassegrain focus)

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