For which of the following quantities does ratios are dimensionless?
(i) `("work")/("Energy")` (ii) `sintheta` (iii) `(Momentum)/(Time)`

Explanation

To determine which of the given quantities has a dimensionless ratio, we will analyze each option step by step.

### Step 1: Analyze Work/Energy
- **Work** and **Energy** are equivalent in physics. The dimensional formula for both is derived from the formula for work:
\[ \text{Work} = \text{Force} \times \text{Displacement} \]
The dimensional formula for Force is:
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