10 JEE Main 2026 Waves and Sound previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2026 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.
Two tuning forks A and B are sounded together giving rise to 8 beats in 2 s. When fork A is loaded with wax, the beat f…
Two loudspeakers (L₁ and L₂) are placed with a separation of 10 m, as shown in figure. Both speakers are fed with an au…
The velocity of sound in air is doubled when the temperature is raised from 0ⁱrc C to αⁱrc C. The value of α is \\\\_.
A transverse wave on a string is described by y = 3(36t + 0.018x + π/4), where x, y are in cm and t in seconds. The lea…
The speed of a longitudinal wave in a metallic bar is 400 ~m / s. If the density and Young's modulus of the bar materia…
In an open organ pipe ν₃ and ν₆ are 3rd and 6th harmonic frequencies, respectively. If ν₆-ν₃=2200 ~Hz then length of th…
Two strings (A, B) having linear densities =2 × 10⁻⁴ ~kg / m and, =4 × 10⁻⁴ ~kg / m and lengths LA=2.5 ~m and LB=1.5 ~m…
The equation of a plane progressive wave is given by y = 5π (200t - (x)/(150) ) where x and y are in cm and t is in sec…
The fifth harmonic of a closed organ pipe is found to be in unison with the first harmonic of an open pipe. The ratio o…
A point source is kept at the center of a spherically enclosed detector. If the volume of the detector increased by 8 t…