Concepts Of Physics MCQ Edition [Volume 1]
- Exam
- Concepts Of Physics MCQ Edition [Volume 1]
- Subject
- Physics
- Chapter
- Wave Motion and Waves on a String
Concepts Of Physics MCQ Edition [Volume 1] · Physics · Wave Motion and Waves on a String
A tuning fork with a frequency of 480 Hz is employed to vibrate a...
A tuning fork with a frequency of is employed to vibrate a sonometer wire that has a natural frequency of . The wire will vibrate at a frequency of
Options
- A
- B
- C
- D
Correct answer
C.
Step-by-step solution
When a tuning fork is used to vibrate a sonometer wire, it sets up forced vibrations in the wire.
In forced vibrations, the system vibrates with the frequency of the external periodic driving force, irrespective of its own natural frequency.
Since the frequency of the tuning fork (the driving force) is , the sonometer wire will vibrate at .
In forced vibrations, the system vibrates with the frequency of the external periodic driving force, irrespective of its own natural frequency.
Since the frequency of the tuning fork (the driving force) is , the sonometer wire will vibrate at .