Oscillations and Waves-Periodic Motion - Period Frequency (KVPY Stream SB-SX (Class 12 & 1st Year BSC) Physics): Questions 1 - 2 of 2

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Question number: 1

» Oscillations and Waves » Periodic Motion - Period Frequency

Appeared in Year: 2010

MCQ▾

Question

A bead of mass m is attached to the mid-point of a taut, weightless string of length l and placed on a frictionless horizontal table.

 A bead of mass m is attached to the mid-point of a taut

a Bead of Mass M Is Attached to the Mid-Point of a Taut

In figure a bead of mass m is attached to the mid-point of a taut, weightless string of length l and placed on a frictionless horizontal table.

Under a small transverse displacement x, as shown, if the tension in the string is T, then the frequency of oscillation is –

Choices

Choice (4) Response

a.

12π2Tml

b.

12π2Tm

c.

12π4Tm

d.

12π4Tml

Question number: 2

» Oscillations and Waves » Periodic Motion - Period Frequency

Appeared in Year: 2010

MCQ▾

Question

A book is resting on shelf that is undergoing vertical simple harmonic oscillations with amplitude of 2.5 cm. What is the minimum frequency of oscillation of the shell for which the book will lose contact with the shelf? (Assume that g = 10 m/s2)

Choices

Choice (4) Response

a.

125.6 Hz

b.

20 Hz

c.

3.18 Hz

d.

10 Hz

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