`{:("List-I","List - 2"),((a)m^(-1),(e)"Surface tension"),((b)Pa,(f)"Thermal capacity"),((c)Jk^(-1),(g)"Rydberg constant"),((d) Jm^(-2),(h)"Energy density"):}`

Options

A. a - h`" "` b- f `" "`c -e `" "` d-g
B. a - g`" "` b- h `" "`c -e `" "` d-f
C. a - g`" "` b- h `" "`c -f `" "` d-e
D. a - f`" "` b- e `" "`c -g `" "` d-h

Answer

To solve the problem of matching the units in List-I with the corresponding physical quantities in List-2, we will analyze each unit and identify which physical quantity it represents.

### Step-by-Step Solution:

1. **Identify the first unit: m^(-1)**
- The unit m^(-1) represents inverse meters. This is commonly associated with the Rydberg constant, which is used in atomic physics to describe the wavelengths of spectral lines in many chemical elements.
- **Match:** (a) m^(-1) → (g) Rydberg constant

2. **Identify the second unit: Pa**
- The unit Pascal (Pa) is a measure of pressure, but it can also represent energy density when expressed in terms of force per unit area. In this case, we will consider it as energy density.
- **Match:** (b) Pa → (h) Energy density

3. **Identify the third unit: Jk^(-1)**
- The unit Joule per Kelvin (J/K) is used to express thermal capacity, which is the amount of heat required to change the temperature of a substance by one degree Kelvin.
- **Match:** (c) Jk^(-1) → (f) Thermal capacity

4. **Identify the fourth unit: Jm^(-2)**
- The unit Joule per square meter (J/m^2) is used to express surface tension, which is defined as the amount of energy required to increase the surface area of a liquid.
- **Match:** (d) Jm^(-2) → (e) Surface tension

### Final Matches:
- (a) m^(-1) → (g) Rydberg constant
- (b) Pa → (h) Energy density
- (c) Jk^(-1) → (f) Thermal capacity
- (d) Jm^(-2) → (e) Surface tension

### Conclusion:
The correct matching is:
- AG, BH, CF, DE