Question

A complete reflection of ultrasound beam occurs approximately at which degree?
a)43.5
b)73.5
c)32.5
d)40.5​

Answer 1

Answer:

i think b this is ur answer

Answer 2

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A complete reflection of ultrasound beam occurs approximately at which degree?

a)43.5

b)73.5

c)32.5

d)40.5

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b)73.5

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