13 JEE Main 2020 Waves and Sound previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2020 previous-year questions from the Waves and Sound chapter of Physics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Waves and Sound chapter hub.
For a transvers wave travelling, along a straight line, the distance between two peaks (crests) is 5  m , while th…
A uniform thin rope of length 12   m and mass 6   kg hangs vertically from a rigid support and a block of mas…
The driver of bus approaching a big wall notices that the frequency of his bus's horn changes from 420   Hz to 490…
In a resonance tube experiment when the tube is filled with water up to a height of 17 . 0   cm , from bottom, it…
A sound source S is moving along a straight track with speed v , and is emitting sound of frequency v 0 .An observer is…
A wire of length L and mass per unit length 6.0 × 10 - 3   k g   m - 1 is put under tension of 540  …
Three harmonic waves having equal frequency v and same intensity I 0 , have phase angles 0 , π 4 and - π 4 re…
A one metre long (both ends open) organ pipe is kept in a gas that has double the density of air at STP. Assuming the s…
A stationary observer receives sound from two identical tuning forks, one of which approaches and the other one recedes…
A transverse wave travels on a taut steel wire with a velocity of v when tension in it is 2.06 × 10 4 N . When the…
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