IdentificationEasy1 mark
One end of a plastic foot ruler is held tightly at the edge of a table and the other end is plucked. Name the vibrations produced in the ruler.
Topic: Natural vibrations of a cantilever
Question wording verified against source paper
Answer
Exam answer
Natural vibrations.
Explanation
After being plucked and released, the ruler vibrates at its natural frequency.
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Equal volumes of water are added to three cylindrical jars A, B and C of same height and radii rA, rB and rC respectively with rB < rA < rC. If you blow air into the mouth of these jars, which tube will produce the shrillest note?
(a) A
(b) B
(c) C
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