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Q.12

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 414

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Short Answer

What is the difference between the driving frequency and the natural frequency of an oscillator?

The distinction is that in the instance of driving frequency, there is some external force, whereas in the case of natural frequency, there is none.

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Step by Step Solution

Step 1: Introduction

Frequency refers to the number of waves that pass through it at a given position in a given amount of time. If the time it takes for a waveform to travel is a second, the frequency is per second. If it takes an hour, the frequency is per hour.

The hertz unit is used to measure frequency.

Step 2:Explanation

When the oscillating system begins to oscillate at a set frequency on its own ,

This frequency is referred to as natural frequency.

However, a system vibrating with a frequency due to external excitation ,

This frequency is referred to as driving frequency..

Step 3: Differentiation of frequency  

As previously stated, driving frequency is caused by external excitation, whereas natural frequency is caused by the system's oscillation when left to fluctuate naturally.

The difference is that there is an external force in the case of frequency, whereas it is not there in the case of natural frequency.

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