Question

Statement 1 : Two waves moving in a uniform string having uniform tension cannot have different velocities. 

Statement 2 : Elastic and inertial properties of string are same for all waves in same string. Moreover speed of wave in a string depends on its elastic and inertial properties only.

(a) Statement -1 is false, Statement-2 is true 

(b) Statement -1 is true, Statement-2 is true; Statement -2 is a correct explanation for Statement-1 

(c) Statement -1 is true, Statement-2 is true; Statement -2 is not a correct explanation for Statement-1 

(d) Statement -1 is true, Statement-2 is false

Answer 1

Correct option: (d)

Explanation: 

Two waves moving in uniform string with uniform tension shall have same speed and may be moving in opposite directions. Hence both waves may have velocities in opposite direction. Hence statement-1 is false.