# KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics: Questions 150 - 154 of 268

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## Question number: 150

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: 151

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: 152

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

### Question

An ideal gas expands from to at a constant pressure of . The heat energy supplied to the gas in this process is –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 153

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.

## Question number: 154

MCQ▾

### Question

A cart is moving along x direction with a velocity of 3 ms-1. A person on the cart throws a stone with a velocity of 8 ms-1 relative to himself. In the frame of reference of the cart the stone is thrown in plane making an angle of 600 with vertical y axis. The speed of stone at highest point of the trajectory the stone is –

### Choices

Choice (4) Response

a.

2 ms-1

b.

5 ms-1

c.

4 ms-1

d.

2.5 ms-1

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