Now the ruler is pushed inside partially and plucked again from its free end. State with a reason whether the frequency of vibration increases or decreases.

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TextSingle Fixed Pulley and Its Mechanical AdvantageSingle Movable Pulley and Its Mechanical AdvantageCondition for Echo Formation

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To lift a load of 30 kgf, Suhas uses a single fixed pulley, while Radha uses a single movable pulley. The displacement of efforts in both the cases are equal. In an ideal situation calculate the ratio of:

TextSingle Fixed Pulley and Its Mechanical AdvantageSingle Movable Pulley and Its Mechanical AdvantageCondition for Echo Formation

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.

TextSingle Fixed Pulley and Its Mechanical AdvantageSingle Movable Pulley and Its Mechanical AdvantageCondition for Echo Formation