EXERCISE 15

What states of matter are responsible for the emission of line spectrum?

What states of matter are responsible for the emission of band spectrum?

Draw a labelled ray diagram for the production of pure spectrum.

What is the process called when a ray of white light is spilt into different colours while passing through a prism ?

 Which region of the spectrum has zero visibility ? 

If a glass prism is dipped in water, its dispersive power

Two incident monochromatic waves whose wavelengths differ by a small amount $d\lambda$ are separated angularly at $\theta$ and $\theta +d\theta$. The dispersive power is given by

Refracting index of glass is