Which wave form oscillates both parallel and perpendicular to the direction of the wave motion? transverse waves, longitudinal w
aves, circular waves
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The period of a mechanical wave is 2 seconds. What is the frequency of the wave?
20 waves/second
5 waves/second
2 waves/second
0.5 waves/second
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The object distance for a convex lens is 15.0 cm, and the image distance is 5.0 cm. The height of the object is 9.0 cm. What is the height of the image?
3.0 cm
8.3 cm
27 cm
45 cm
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The period of a mechanical wave is 2 seconds. What is the frequency of the wave?
20 waves/second
5 waves/second
2 waves/second
0.5 waves/second
///////
The object distance for a convex lens is 15.0 cm, and the image distance is 5.0 cm. The height of the object is 9.0 cm. What is the height of the image?
3.0 cm
8.3 cm
27 cm
45 cm
1 answer:
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Answer:
time taken by the wave to reach the person is 0.2 s
Explanation:
As we know that the speed of the wave is given as
here we know that the wavelength of the wave is
now speed of the wave is given as
Now time taken by the wave to reach 5 m distance is