What information do we get about sunlight from the formation of a rainbow ?

What is a rainbow ? How is rainbow produced ?.What information do you get about sunlight from the formation of a rainbow ?

What are the steps for the formation of a primary rainbow ?

What information do we get about the nature of light by polarisation?

What information do we get from the Mughal chronicle?

What is the cause of formation of a rainbow?

What acts as tiny prisms in the formation of a rainbow ?

What information do we get from the mapping of the ocean floor and palaeomagnetic studies of rocks from oceanic regions?