MHT CET Physics question

A plane progressive wave is represented by the equation where is displacement in m, in second and is distance from a fixed origin in metre. The frequency, wavelength and speed of the wave respectively are [Pb. PET 2001, Similar AMU (Engg.) 2009]

• (A)100 Hz, 1.7 m, 170 m/sCorrect
• (B)150 Hz, 2.4 m, 200 m/s
• (C)80 Hz, 1.1 m, 90 m/s
• (D)120 Hz, 1.25 m, 207 m/s