Pass sunlight through a prism and allow it to fall on a screen . What are the coloure seen on the screen ?

The beam of white light from a torch is allowed to fall obliquely on the prism Which are the colours formed on the screen ?

The beam of white light from a torch is allowed to fall obliquely on the prism Aren't these colours the same as the component colours obtained from the sunlight ?

What is the colour seen at the upper edge of the rainbow ?