Asked: U.P.P.C.S. (Pre) 2014medium Level
QUESTION STATEMENT:द्विभाषी / Bilingual
ध्वनि तरंगें नहीं चल सकती हैं-
Sound waves cannot travel in:
SELECT CORRECT OPTION:
A
ठोस में
Solids
B
द्रवों में
Liquids
C
गैसों में
Gases
D
निर्वात में
Vacuum
Correct
Official Solution & Explanation:
Correct Answer: Option D(निर्वात में)
ध्वनि तरंगें यांत्रिक तरंगें हैं जिनके संचरण हेतु द्रव्यात्मक माध्यम आवश्यक है। अतः ध्वनि तरंगें निर्वात में गमन नहीं कर सकती हैं।
Sound waves are mechanical waves and require a material medium. Hence, they cannot travel in a vacuum.
Subject: General Science•Topic: Sound / Acoustics•Subtopic: Sound / Acoustics
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