Year: U.P.P.C.S. (Pre) 2014• Sound / Acoustics
ध्वनि तरंगें नहीं चल सकती हैं-
Sound waves cannot travel in:
A.ठोस मेंB.द्रवों मेंC.गैसों मेंD.निर्वात में
Collection of verified questions for Dhwani under General Science. Includes previous year exam questions with official answer keys and step-by-step solutions.
Sound waves cannot travel in:
If $V_a$, $V_w$, and $V_s$ are the speeds of sound in air, water, and steel respectively, then: