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Question: Answered & Verified by Expert
Two waves y1=3 sinωt cm and y2=4 cos ωt+π2 cm produce the interference pattern. Then the amplitude of the resultant wave will be
PhysicsWave OpticsNEET
Options:
  • A 1 cm
  • B 3 cm
  • C 4 cm
  • D 5 cm
Solution:
2541 Upvotes Verified Answer
The correct answer is: 5 cm
A=a2+b2+2abcosϕ

=9+16+2 . abcosπ2=25=5

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