Draw a ray diagram showing position of virtual sources and region of interference in biprism experiment .

Draw neat labelled ray diagrams to get magnified and diminished images of two virtual sources using convex lens in biprism experiment.

Draw a neat labelled diagram showing steps of PCR.

Draw a diagram showing different stages of projection for an artificialsatellite.

Draw ray diagram for object at infinity for a concave mirror.

Draw ray diagram for object at infinity for a concave mirror.

Describe how the distance between the two virtual sources in the biprism experiment is measured. Derive the necessary formula.

Draw well labelled diagram for the following: A ray diagram for object position at infinity for a convex lens or convergence of rays by convex lens.

Draw a diagram to show the beta-pl e ated sheet of protein structure.

Draw neat and labelled diagram of Amoeba showing binary fission.

Draw a neat labelled diagram to show the energy flow of heat engine.