Combination of Prisms

Rarely Tested

Combination of Prisms

### Condition for Achromatic Combination

$$\omega_1\delta_1+\omega_2\delta_2=0$$

### Terminologies

- ω1, ω2 → Dispersive powers.

- δ1, δ2 → Deviations.

### Usage

- Used in achromatic prism problems.

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