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In the circuit below, A and B represent two inputs and C represents the output. The circuit represents

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A student measuring the focal length of convex lens by putting an object pin at a distance 'u' from the lens and measuring the distance 'v' of the image pin. The graph between 'u' and 'v' plotted by the student should look like

Identify the wrong statement in the following:

A thin rod of length 'L' is lying along the x-axis with its ends at $x=0andx=L$. Its linear density (mass/length) varies with x as $k(Lx )_{n}$, where n can be zero or any positive number. If the position $x_{CM}$ of the centre of mass of the rod is plotted against 'n', which of the following graph best approximates the dependence of $x_{CM}$ on n ?

If P and Q are the points of intersection of the circles $x_{2}+y_{2}+3x+7y+2p5=0$and $x_{2}+y_{2}+2x+2yp_{2}=0$, then there is a circle passingthrough P, Q and $(1,1)$for

If $u^$and $v^$are unit vectors and $θ$is the acute angle between them, then $2u^×3v^$is a unit vector for

On the basis of the following thermochemical data : $(ΔfG_{2}H_{(aq)}=0)$ $H_{2}O(l)→H_{+}(aq)+OH_{−}(aq),ΔH=57.32kJ$ \displaystyle{H}_{{{2}}}{\left({g}\right)}+

If one of the lines of $my_{2}+(1−m_{2})xy−mx_{2}=0$is a bisector of the angle between the lines $xy=0$, then m is

If the mean deviation of the numbers $1,1+d,1+2d,…,1+100d$ from their mean is 255, thenthe d is equal to