NEET2008PhysicsUnits and DimensionsActual
Given that y=A [ ( 2 (c t-x) ) ] , where y and x are measured in metre. Which of the following statements is true?
Options
- AThe unit of is same as that of x and A
- BThe unit of is same as that of x but not of A
- CThe unit of c is same as that of 2
- DThe unit of (c t-x) is same as that of 2
Correct answer
A. The unit of is same as that of x and A
Step-by-step solution
Here 2 (c t-x) is dimensionless. Hence, c t is also dimensionless and unit of c t is same as that of x . Therefore, unit of is same as that of x . Also unit of y is same as that of A , which is also the unit of x .