Answer : both have nearly equal coefficients of expansion .Iron or steel is used in reinforcement...

Answer : go on decreasing continuouslyA spring balance is graduated at sea level . If a body is wei...

Answer : DoubledA mass of the body is halved and its speed is doubled . The kinetic energy of the...

Answer : $\;162^{0}C$If $\;m \angle{A}=102^{0}C\;$ , the measures of $\;\angle{ABC}\;$ : $162^{0}C...

Answer : $\;\large\frac{1}{6} (2x+1)(3x-1)$Factors of $\;(x^{2} + \large\frac{x}{6}- \large\frac{...

Answer : $\;3 : 2$A cylinder circumscribes a sphere . The ratio of their volume is : 3 : 2

Answer : $\;21$If $\;\sqrt{19-4 \sqrt{x}}=\sqrt{12} - \sqrt{7}\;$Then x = 21

Answer : BauxiteAn ore of aluminium is Bauxite

Answer : Hydrogen gas Hydrogen gas contains only one kind of atoms

Answer : $\;4^{0}C$Density of water is maximum at $\;4^{0}C$

Answer : $\;_{10}Y^{20}$the less reactive element is $\;_{10}Y^{20}$

Answer : $\;CO_{2}\;and\;H_{2}$$CO_{2}\;and\;N_{2}O\;$of gases cannot be separated by diffusion me...

Answer : Homologous chromosomes synapse in prophaseHomologous chromosomes synapse in prophase. is ...

Answer : Fast soluble and can be stored in fast tissueWhen DDT , a pesticide , enters the humans b...

Answer : CytokinesisCytokinesis features of cell division are very different for animal and plant ...

Answer : Light microscope Light microscope - would allow you to study the orderly sequence of eve...

Answer : scale : weightscale : weight has a similar relationship as the given pair odometer : dis...

Answer : beautiful Beautiful word does NOT belong with the others

Answer :

Answer : $\;JAK$Fill the blank with the most appropriate choice FAG GAF HAI IAH --- JAK

Answer : $\;20$Look at this series : 80 ,10 ,70 ,15 ,60 ,----- the number should come next is 20

Answer : All the above occurWhen electricity is passed through a coilMagnetic field is produced , ...

Answer : $\;340\;ms^{-1}$A man stands at a distance of 255 m from a cliff . He fires a gun and hear...

Answer : Evaporates of sweatA fan produces a feeling of comfort because the fan - Evaporates of sw...

Answer : More than the pressure exerted by a blunt needlePressure exerted by a sharp needle on a s...

Answer : Frictional force of ice is smallTo avoid slipping while walking on ice , one should take ...

Answer : Weight is a force where as mass is not a forceMass differs from weight in that - Weight ...

Answer : $\;140^{0}C$O is the centre of circle then $\; \angle{AOC} \;$ is $\;140^{0}C$

Answer : $\;32^{0}C$The angle x is $\;32^{0}C$

Answer : CDAB = AC , $\;\angle{A}=48^{0}\;$ and $\;\angle{ACD} = 18^{0}\;$ , BC =CD

Answer : Cthe point C has the coordinates $\;(4 ,-6)$

Answer : 13.5 cmThe value of BD is 13.5 cm

Answer : 2Explanation :$-8y-(y-5)=-13\;$$-8y-y+5=-13$$-9y=-13-5$$y=\large\frac{18}{9}$$y=2$

Answer : $\;\large\frac{12m}{2m+1}$$\; \large\frac{6m-3}{2mn} \;\div \; \large\frac{4m^{2}-1}{8m^{2...

Answer : 4If the circumference and the area of a circle are numerically equal , then the value o...

Answer : $\;x^{\large\frac{77}{15}}$$\large\frac{\sqrt{x^{3}}\times \sqrt[3]{x^{5}}}{\sqrt[5]{x^{3}}...

Answer : 4848In a division sum , the divisor is 12 times the quotient and 5 times the remainder . ...

Answer : $\;\large\frac{(x^{2}+1)^{2}}{(2x+1)^{2}}$Explanation :$a+ib =\large\frac{(x+i)^{2}}{2x^{2...

Answer : $\sqrt{2}$Explanation :$\;z_{1}=2-i\;,z_{2}=1+i\;$ Therefore ,$\;|\large\frac{z_{1}+z_{2...

Answer : $\;\large\frac{2}{3} \pm \large\frac{\sqrt{14}}{21} i$Explanation :The given quadratic equ...

Answer : $\;\large\frac{5}{27} \pm \large\frac{\sqrt{2}}{27} i$Explanation :The given quadratic equ...

Answer : $\;1 \pm \large\frac{\sqrt{2}}{2} i$Explanation :The given quadratic equation is $\;x^{2}-...

Answer : $\;\large\frac{2}{3} \pm \large\frac{4}{3} i$Explanation :The given quadratic equation is ...

Answer : $\;\sqrt{2}\;[cos (\large\frac{3\pi}{4})+i \;sin(\large\frac{3\pi}{4})]$Explanation :$\;=\...

Answer : $\;\sqrt{2}\;[cos (\large\frac{3\pi}{4})+i \;sin(\large\frac{3\pi}{4})]$Explanation :$\;\...

Answer : $\;\large\frac{a^{2}+b^{2}}{c^{2}+d^{2}}$Explanation :$\;x-iy=\sqrt{\large\frac{a-ib}{c-id...

Answer : $\;\large\frac{307}{442}+ \large\frac{599}{442} i$Explanation :$\;(\large\frac{1}{1-4i}- ...

Answer : $\;2-2i$Explanation :$\;[i^{18} +(\large\frac{1}{i})^{25}]^{3} = [i^{4\times4+2} +\large\f...

Answer : $\;\large\frac{-1 \pm \sqrt{7} i}{2 \sqrt{2}}$Explanation :The given quadratic equation i...

Answer : $\;\large\frac{-1 \pm( \sqrt{2\sqrt{2}-1})i}{2}$Explanation :The given quadratic equation ...