# Oscillations and Waves-Periodic Motion - Period Frequency (KVPY Stream SB-SX (Class 12 & 1st Year B.Sc.) 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.

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.

b.

c.

d.

## 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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