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How would you distinguish betwwen 2-pentanone and 3-pentanone?

Why the emission of gamma rays is known as second order process?

Why do we keep a prism at minimum deviation for a yellow light?

What is meant by 1degree 2 degree carbon?

It is not difficult.It is clearly based on logic.For more help refer to NCERT Book,book written by RD Sharma and A Dasgupta.Tip-Think the logic clearly and systematically.If you cannot understand the problem read the problem repeatedly.

The inside of a convex lens can be considered as a number of prisms.The prisms are faced upwards above the principal focus and the prisms are faced downwards below the principal focus.So,when the light ray is incident on the prisms,they bend towards the base and produces a converging beam of rays.So convex lens has converging nature.

A particle is moving in a straight line under a retardation of av^n+1 where v is the velocity at time t and a is the constant,x is the displacement.Show that if u be the velocity of the particle at t=0 then at=(1/x)(1/v^n-1/u^n)