Explain with the help of diagram the terms:
angle of dip at a given place.

Explain with the help of diagram the terms magnetic declination

Explain meiosis I with the help of diagram only.

Explain with the help of a diagram the formation of image formed by a plane mirror.

What is meant by dispersion of light explain with the help of diagram and give the cause of dispersion

What is meant by term modulation? Explain with the help of a block diagram. How the process of modulation is carried out in radio boadcast?

What are optical fibres ? Explain with the help of diagram on what principle does it work ?

Draw and explain with the help of block diagram, elementa of communication system.