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The combination of gates shown below yields

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The resultant of two forces P N and 3 N is a force of 7 N. If the direction of 3 N force were reversed, the resultant would be $19 $N. The value of P is

Two wires are made of the same material and have the same volume. However wire 1 has cross-sectional area A and wire -2 has cross-sectional area 3A. If the length of wire 1 increases by $Δx$ on applying force F, how much force is needed to stretch wire 2 by the same amount ?

Which of the following statements is incorrect regarding physissorptions ?

The equation of a tangent to the parabola $y_{2}=8x$ is $y=x+2$. The point on this line from which the other tangent to the parabola is perpendicular to the given tangent is

Let A be a $2×2$ matrix Statement 1 : $adj(adjA)=A$ Statement 2 : $∣adjA∣=∣A∣$

The coodination number and the oxidation state of the element 'E' in the complex $[E(en)_{2}(C_{2}O_{4})]NO_{2}$ (where (en) is ethylene diamine) are, respectively,

Bakelite is obtained from phenol by reacting with

For the hyperbola $cos_{2}αx_{2} −sin_{2}αy_{2} =1$, which of the following remains constant when $α$varies?