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PHY 102 Test Compilation PHY 102 27 Objective Question
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Question

Two waves traveling on a string in the same direction have frequency 100 Hz, wavelength 2 cm, and amplitude 0.02 m. They differ in phase by 60 degrees. What is the amplitude of the resultant wave?
Options
A 0.028 m
B 0.035 m
Correct Answer
C 0.045 m
D 0.055 m
Correct Answer

Option B is the correct answer.

Detailed Explanation

A_result=2A cos(phi/2)=2(0.02)cos(30)=0.0346m.

Hint

A_result=2A cos(phi/2)=2(0.02)cos(30)=0.0346m.

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 27
Type: Objective
Difficulty: Not specified
Question 1608 of 1819
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