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a glass tube with mercury trapped in b/w. length of glass tube 100 cm lenthg of mercury in b/w glass tube of length 20 cm(on both side equal air columns at normal condns) take density of mercury =ρ find : a) ht of air co ...

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a long round conductor of cross sectional area A is made of material whose resistivity depends on radial distance r from the axis of conductor as p=a/r^2 , a is contant What is total resistance per unit length of conductor an ...

The ionisation constant of water is [H+][OH-]. Does this mean that whatever concentration os water we take, it will dissossiate into 10 -7 moles of H+ per litre and 10-7 moles of OH- per litre? ...

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a balloon rises from ground with an accerlation of 1.25m/s2. after 8 s a stone is relased 4rm the baloon.the stone will: a)cover a distance of 40m b)have a displacement of 50m c)reach the ground in 4 sec d)begin to move down ...

a particle has an intial velocity of 9m/s due to east and a const. accerlation of 2m/s2. due to west. the distance coverd by the particle in the 5th second of itz motion???? a)0 b)0.5m c)2m d)none of these ...

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a 5 letter word is to be prepared such that the letters appearing in the odd numbered positions are taken from the letters which appear without repitation in the word "MATHEMATICS" and letters appearing in the even po ...

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Hello everyone , here is a very useful website . www.hashminds.com On registering it provides one with a set of questions on a daily basis. ...

Two non conducting hemispheres having uniform equal and opposite charge those two halves are joined to make a sphere and kept in uniform electric field the diameter makes an angle θ with horizontal the ground has sufficient ...

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