Write the colours of the spectrum?

Which colour of light deviates the least in the spectrum obtained with a prism?

Choose the correct alternative and write it along with its allotted alphabet: _____ Light is deviated the least in the spectrum of white light obtained with a glass prism.

A particular metal used as a cathode in an experimentonphotoelectric effect does not show photoelectric effect when it is illuminated with green light. Which of the colours in the visible spectrum are likely to generate photocurrent?

Choose the correct alternative and write it along with its allotted alphabet: ___light is deviated the maximum in the spectrum of white light obtained with a glass prims

Name the series of hydrogen spectrum lying in ultraviolet region.

The colour of salt due to

p-(dimethylamino)azobenzene is a yellow dye which was formerly used as a colouring agent in margarine. Write the structures of the reactants used in the preparation of this dye.

Write a note on absorption spectrum.

Write a note on action spectrum.

On observing light from three different stars P , Q and R , it was found that intensity of violet colour is maximum in the spectrum of P , the intensity of green colour is maximum in the spectrum of R and the intensity of red colour is maximum in the spectrum of Q . if T_(P) , T_(Q) and T_(R) are respective absolute temperature of P , Q and R . then it can be concluded from the above observation that