Asked: U.P. Lower Sub. (Pre) 2013medium Level
QUESTION STATEMENT:द्विभाषी / Bilingual
किसी अतिचालक द्वारा प्राप्त अधिकतम ताप होता है-
The highest temperature achieved by a superconductor (at ambient pressure) is:
SELECT CORRECT OPTION:
A
24 केल्विन
24 Kelvin
B
133 केल्विन
133 Kelvin
Correct
C
150 केल्विन
150 Kelvin
D
300 केल्विन
300 Kelvin
Official Solution & Explanation:
Correct Answer: Option B(133 केल्विन)
वायुमंडलीय दाब पर किसी अतिचालक द्वारा प्राप्त अधिकतम ताप $133\text{ K}$ (केल्विन) होता है। यह एक सिरेमिक क्यूप्रेट पदार्थ (Hg-Ba-Ca-Cu-O) में देखा गया है।
At atmospheric pressure, the highest verified critical temperature for a cuprate superconductor (HgBa2Ca2Cu3O8+δ) is about 133 K (-140°C).
Subject: General Science•Topic: Conductivity•Subtopic: Conductivity
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