Ryan while verifying the laws of reflection of sound measured the angle between the incident sound wave and reflected wave to be 130°.what is angle of incidence?..class 9
Answers
Answered by
196
Since the normal makes an angle of 90 with the plain.
Therefore,
Let angle between incident ray and plain be X.
=> angle of incidence=(90-X)
=> angle of refraction=(90-X)
According to question:
90-x+ 90-x=130
=>180-2x=130
=>2x=50
=x=25.
Therefore,
Let angle between incident ray and plain be X.
=> angle of incidence=(90-X)
=> angle of refraction=(90-X)
According to question:
90-x+ 90-x=130
=>180-2x=130
=>2x=50
=x=25.
Answered by
11
Answer:
65°
Explanation:
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