A solid weighs 30 gf in air and 26 gf when completely immersed in a liquid of relative density 0.8. Find : (i) the volume of solid, and (ii) the relative density of solid.

Explanation

To solve the problem step by step, we will use the information given and apply Archimedes' principle.

### Step 1: Identify the given values
- Weight of the solid in air (W1) = 30 gf
- Weight of the solid when immersed in liquid (W2) = 26 gf
- Relative density of the liquid (RD_liquid) = 0.8

### Step 2: Calculate the loss of weight when the solid is immersed in the liquid
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