Intermediate colours are formed by mixing :

Question

Accepted Answer

Intermediate colours, also known as tertiary colours, are formed by mixing one primary colour with one secondary colour. This is why Option 1 is the correct answer. Let's delve into the details:

1. **Explanation for Option 1:**
   - Primary colours are the basic colours that cannot be created by mixing other colours. These are red, blue, and yellow.
   - Secondary colours are formed by mixing two primary colours. These include green (blue + yellow), orange (red + yellow), and purple (red + blue).
   - Intermediate or tertiary colours are created by mixing a primary colour with a secondary colour. For example, mixing blue (primary) with green (secondary) results in blue-green, and mixing red (primary) with orange (secondary) results in red-orange.
   - Therefore, Option 1 is correct because it accurately describes the process of creating intermediate colours.

2. **Explanation for why other options are incorrect:**

- **Option 2: Two primary colours in equal proportion**
     - Mixing two primary colours in equal proportion results in a secondary colour, not an intermediate colour. For example, mixing red and blue gives purple, a secondary colour.

- **Option 3: Two secondary colours in equal proportion**
     - Mixing two secondary colours does not typically result in a distinct intermediate colour. Instead, it often leads to a more muted or neutral colour, such as brown or grey, depending on the specific secondary colours mixed.

- **Option 4: Two tertiary colours in equal proportion**
     - Mixing two tertiary colours can result in a complex colour that is not specifically classified as an intermediate colour. The resulting colour may lack the clarity and distinction of a primary, secondary, or intermediate colour.

In conclusion, Option 1 is the correct choice because it accurately describes the process of forming intermediate colours by mixing one primary colour with a secondary colour. The other options do not correctly describe the formation of intermediate colours.