एक निश्चित वर्गाकार तरंग का काल 4 msec है। इसकी मौलिक आवृत्ति क्या होगी?

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LPSC ISRO Technical Assistant Electronics 07 Aug 2016 Official Paper
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  1. 0 Hz
  2. 230 Hz
  3. 250 Hz
  4. 430 Hz

Answer (Detailed Solution Below)

Option 3 : 250 Hz
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संकल्पना:

एक वर्गाकार तरंग को निम्न रूप में दर्शाया गया है:

F1 Shubham B 27.3.21 Pallavi D1

एक वर्गाकार तरंग के लिए मूल आवृत्ति समय काल का प्रतिलोम है, अर्थात

\(f=\frac{1}{T}\)

गणना:

T = 4 msec के साथ, मूल आवृत्ति होगी:

\(f=\frac{1}{4\times 10^{-3}}=250~Hz\)

महत्वपूर्ण लेख: एक वर्गाकार तरंग कई आवृत्तियों का एक संयोजन है, अर्थात

fवर्गाकार = f0 + f1 + f2 + ... + fn

f0 = मूल आवृत्ति

f1, f2, ...fn हारमोनिक हैं, अर्थात मूल आवृत्ति के गुणक

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