You are walking along a street. If you just choose a stranger crossing you, what is the porbability that his next birthday will fall on a Sunday ?

What do you mean by crossing over ?

You are walking along a seashore and a mild wind is blowing. Is the motion of air a wave motion ?

You are walking along a seashore and a mild wind is blowing. Is the motion of air a wave motion ?

You are walking along a seashore and a mild wind is blowing. Is the motion of air a wave motion ?

You are walking down the street and suddenly you see two hundred rupee notes on the pavement. What action will you take?

You are walking down the street and suddenly you see two hundred rupee notes on the pavement. What action will you take ?

What do you understand by the terms 'crossing over' and 'Chiasma'?

On your birthday, you measure the activity of the sample ""^(210)Bi which has a half - life of 5.01 days. The initial activity that you measure is 1muCi . (a) What is the approximate activity of the sample on your next birthday? Calculate (b) the decay constant (c) the mean life (d) initial number of atoms.