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. For example, mixing red and blue gives purple, blue and yellow give green, and red and yellow give orange.
   - Intermediate or tertiary colours are created by mixing one primary colour with one secondary colour. For instance, mixing blue (primary) with green (secondary) results in blue-green, and mixing red (primary) with orange (secondary) results in red-orange. This process creates a more nuanced colour that lies between the primary and secondary colours on the colour wheel.

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, which is a secondary colour.

- **Option 3: Two secondary colours in equal proportion:**
     - Mixing two secondary colours does not result in an 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 does not specifically result in another intermediate colour. The outcome can vary widely and does not fit the definition of creating an intermediate colour, which specifically involves a primary and a secondary colour.

In conclusion, Option 1 is the correct answer because intermediate colours are specifically formed by mixing one primary colour with one secondary colour, resulting in a tertiary colour that bridges the two on the colour wheel.