List of top Questions asked in JKCET

In an $n-p-n$ transistor, $p$ is

The number of integer value(s) of $k$ for which the expression $ {{x}^{2}}-2(4k-1)x+15{{k}^{2}} $ $ -2k-7>0 $ for every real number $x$ is/are

Among second period elements/the correct order for first ionisation enthalpy is

$H A$ is a weak acid. At $25^{\circ} C$, the molar conductivity of $0.02\, M\, H A$ is $150\, \Omega^{-1} cm ^{2} mol ^{-1}$. If its $\Lambda_{ m }^{ o }$ is $300\, \Omega^{-1} cm ^{2} mol ^{-1}$, then equilibrium constant of $H A$ dissociation is

Nylon is a

$K_{p} / K_{c}$ for the reaction $A(g)+2 B_{2}(g) \rightleftharpoons A B_{2}(g)$ is

A satellite revolves around the earth of radius $R$ in a circular orbit of radius $3R.$ The percentage increase in energy required to lift it to an orbit of radius $5R$ is

Which of the following is incorrect about sky waves?

Which of the following is correct statement about the magnitude of the acceleration $a$ of the particle executing simple harmonic motion?

A gas at high temperature is cooled. The highest temperature at which liquefaction of gas first occurs is called

The compound formed upon combustion of potassium metal in excess air is

The number of tetrahedral and octahedral void per unit cell of cubic closed packed structure is

Let $A$ and $B$ be points $ (8,\,\,10) $ and $ (18,\,20), $ respectively. If the point $Q$ divides AB externally in the ratio $ 2:3 $ and $M$ is the $S$ mid-point of $AB$, then the length $MQ $ is equal to

If the plane $ 2x-3y+6z-11=0 $ makes an angle $ \theta $ with the $x-axis$, then the value of $ \tan \theta $ is equal to

Assuming density $d$ of a planet to be uniform, we can say that the time period of its artificial satellite is proportional to

In an acidified aqueous solution of $Mn ^{2+}, Ni ^{2+}, Cu ^{2+}$ and $Hg ^{2+}$ ions, $H _{2} S$ gas was passed. Precipitates are

When the following amide is treated with $Br_{2}/KOH$, it gives

If the image of the point $ (1,\,-2,3) $ in the plane $ 2x+3y-z=7 $ is the point $ (\alpha ,\beta ,\gamma ) $ then $ \alpha +\beta +\gamma $ is equal to

The dimension of magnetic flux is

Values for Brewster's angle can be

Let $X$ be a random variable with its expectation $ E(X)=3 $ and its variance $ V(X)=2 $ . If $V$ is another random variable defined by $ Y=10X, $ then the ordered pair $ (E(Y),\,V(Y)) $ is equal to

Buna-$N$ synthetic rubber is obtained by copolymerisation of

The number of the solutions of the equation $ {{5}^{2x-1}}+{{5}^{x+1}}=250, $ is/are

If the forward bias voltage in a $p-n$ junction diode is decreased, the length of depletion region will

If the density of methanol is $0.8\, kg\, L ^{-1}$, what is its volume needed for making $4\, L$ of its $0.25\, M$ solution?