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In the following circuit a 10 m long potentiometer wire with resistance 1.2 ohm/m, a resistance R1 and an accumulator of emf 2 V are connected in series. When the emf of thermocouple is 2.4 mV then the deflection in galvanome ...
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The value of alpha for which the function f(x)=1+alpha x,,alpha e 0 is inverse of itself will be a) -2 b) -1 c) 1 d) 2 ...
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In the following compounds, *Image* The order of basicity is a) IV > I > III> II b) III > I > IV > II c) II > I > III > IV d) I > III > II > IV ...
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A thin spherical conducting shell of radius R has a charge q. Another charge Q is placed at the centre of the shell. The electrostatic potential at a point P a distance frac{R}{2} from the centre of the shell is a) frac{(q+Q) ...
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An increase in temperature by {10^0},C , generally increases the rate of al reaction by a) 2 times b) 10 times c) 9 times d) 100 times ...
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Prove that sin (nA) = cos n A (n C1 tan A - n C3 tan 3 A + n C5 tan 5 A -............) ...
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A particle is dropped vertically from rest from a height. What will be The time taken by it to fall through each successive distances of 1m? ...
