MHT CET 2022 Physics question

In a medium the phase difference between two particles separated by a distance 'x' is . If the frequency of the oscillation of particles is 25 Hz and the velocity of propagation of the wave is 75 m/s, then the value of x is

• (A)0.1 m
• (B)0.2 m
• (C)0.3 mCorrect
• (D)0.4 m