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Washing of hands should be done after go...

Washing of hands should be done after going to bathroom.

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Full-scale deflection occurs in a moving coil galavanometer of resistance 36 Omega when 100 mA current flows through it. What arrangement should be done to convet it into a voltmeter of 0-5V range ? Draw the ncessary circuit diagram.

A drop of water of radius 1 mm is to be divided into 10^6 point drops of equal size. How much mechanical work should be done ? The surface tension of water = 72 dyn. cm^-1 .

Some halogen containing compounds are useful in daily life. Some compounds of this class are responsible for exposure of flora and fauna to more and more of UV light which causes destruction to a great extent. Name the class of these halocompounds. In your opinion, what should be done to minimise harmful effects of these compounds ?

Find the point to which the origin should be shifted after a translation of axis so that the following equations will have no first degree terms : (i) x^(2)+y^(2)-4x-8y+3=0 , (ii) x^(2)+y^(2)-5x+2y-5=0

Find the point to which the origin should be shifted after a translation of axes , so that the equation 3x^(2)+8xy+3y^(2)-2x+2y-2=0 will have no first degree terms.