JEE Main 2026 Physics question
The equation of a plane progressive wave is given by where x and y are in cm and t is in second. The velocity of the wave is m/s.
Answer: (D)
Solution
ω = 200π rad/s and k = π/150 cm⁻¹, so v = ω/k = 200 × 150 = 30000 cm/s = 300 m/s.