# Oscillations and Waves (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics): Questions 16 - 20 of 27

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## Question number: 16

» Oscillations and Waves » Simple Pendulum

MCQ▾

### Question

The bob of a simple pendulum executes simple harmonic motion in water with a period t, while the period of oscillation of the bob is t0 in air. Neglecting frictional force of water and given that the density of the bob is . What relationship between t and t0 is true?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 17

» Oscillations and Waves » Simple Pendulum

MCQ▾

### Question

The breaking strength of thread of a simple pendulum, whose bob has mass m, is 2 mg. What is the maximum angular amplitude that can be given to the pendulum?

### Choices

Choice (4) Response

a.

520

b.

600

c.

480

d.

400

## Question number: 18

» Oscillations and Waves » Simple Pendulum

MCQ▾

### Question

The breaking strength of thread of a simple pendulum, whose bob has mass m, is 4 mg. What is the maximum angular amplitude that can be given to the pendulum?

### Choices

Choice (4) Response

a.

450

b.

600

c.

700

d.

300

## Question number: 19

» Oscillations and Waves » Free Forced and Damped Oscillations

MCQ▾

### Question

If an oscillator completes 200 oscillations, its amplitude decreases to of its initial value. When it completes 400 oscillations, the amplitude will be –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 20

» Oscillations and Waves » Wave Motion

Appeared in Year: 2015

MCQ▾

### Question

The intensity of sound during the festival season increased by 100 times. This could imply a decibel level rise from,

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page