किसी परमाणु के आयतन और नाभिक के आयतन का अनुपात (परिमाण के क्रम के संदर्भ में) है:

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AAI ATC Junior Executive 21 Feb 2023 Shift 2 Official Paper
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  1. 1010 
  2. 1025 
  3. 1015 
  4. 10

Answer (Detailed Solution Below)

Option 3 : 1015 
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संकल्पना:

चूंकि परमाणु को गोलाकार माना जाता है, इसलिए परमाणु के आयतन की गणना करने का सूत्र निम्न है

  • \(V_a=\frac{4}{3}\pi r_a^3\)
  • परमाणु की त्रिज्या \(r_a=10^{-10}m\) है। 

 

फिर, नाभिक को आकार में गोलाकार भी माना जाता है, इसलिए नाभिक के आयतन की गणना करने का सूत्र निम्न है

  • \(V_n=\frac{4}{3}\pi r_n^3\)
  • नाभिक की त्रिज्या \(r_n=10^{-15}m\) है। 

 

स्पष्टीकरण​:

\(V_a=\frac{4}{3}\pi r_a^3=\frac{4}{3}\pi (10^{-10})^3\)

\(V_n=\frac{4}{3}\pi r_n^3=\frac{4}{3}\pi (10^{-15})^3\)

\(\frac{V_a}{V_n}=\frac{\frac{4}{3}\pi (10^{-10})^3}{\frac{4}{3}\pi (10^{-15})^3}\)

\(\frac{V_a}{V_n}=\frac{\frac{4}{3}\pi (10^{-30})}{\frac{4}{3}\pi (10^{-45})}\)

\(\frac{V_a}{V_n}=10^{15}\)

अतः, सही उत्तर विकल्प-3-\(10^{15}\) है

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