Starting with the law of radioactive disintegration, show that : `N=N_(0)e^(-lamdat)`, where the terms have their usual meaning.

For radioactive disintegration of a radioactive substance, show that N = N_(0)e^(-lambdat) where the terms have their usual meaning,

For two thin lenses kept in contact with each other, show that : " "1/F=1/f_(1)+1/f_(2) where the terms have their usual meaning.

Derive the equations s=ut+1/2at^(2) using graphical method where the terms have their usual meaning .

Draw a neat labelled diagram of Young.s Double Slit experiment. Show that beta= (lamda D)/(d) , where the terms have their usual meaning (either for bright or dark fringe).

What is the dimensional formula of (1)/(mu_(0)epsilon_(0)) where the symbols have their usual meanings?

Derive R = 2f for a spherical mirror, where the symbols have their usual meaning

In Thomson.s experiment, prove that the ratio of charge to the mass (e/m) of an electron is given by : (e)/(m)=(1)/(2V).(E^(2))/(B^(2)) where the terms have their usual meaning.

With the help of a labelled diagram, show that the balancing condition of a Wheatstone bridge is : (R_(1))/(R_(2))=(R_(3))/(R_(4)) where the terms have their usual meaning.