एक मूल आवृत्ति का चौथा संनादी 512 हर्ट्ज है। मूल आवृत्ति क्या है?

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IPRC ISRO Technical Assistant Electronics 21 April 2018 Official Paper
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  1. 256 Hz
  2. 126 Hz
  3. 102.4 Hz
  4. 128 Hz

Answer (Detailed Solution Below)

Option 4 : 128 Hz
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संकल्पना:

मूल आवृत्ति: मूल आवृत्ति कंपन की न्यूनतम आवृत्ति है।

मूल आवृत्ति की nth संनादी निम्न रूप में दी गई है:

nth संनादी = n x मूल आवृत्ति

\(f_0=\frac{n^{th} \ Harmonic}{n}\)

गणना:

दिया गया है:

n = 4, 4th संनादी = 512 Hz

∴ मूल आवृत्ति (f0) होगी:

\(f_0=\frac{n^{th} \ Harmonic}{n}=\frac{512}{4}\)

f0 = 128 Hz

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