List of top Questions asked in JEE Main, KCET

On bombarding $U^{235}$ by slow neutron, $200\, MeV$ energy is released. If the power output of atomic reactor is $1.6\, MW$, then the rate of fission will be
The basic principle of Cottnell's precipitator is
Among the following, which is least acidic ?
The ratio of the nuclear radii of elements with mass numbers $216$ and $125$ is
The moment of inertia of a thin circular disc about an axis passing through its center and perpendicular to its plane is $1$. Then, the moment of inertia of the disc about an axis parallel to its diameter and touching the edge of the rim is
Of all the environmental factors which is the most influential in determining the rate of transpiration ?
Intercalary meristem is a derivative of
Plants like Aegle mormelos, Ocimum sanctum and Ficus religiosa are a group of plants designated as
Whether a child died after normal birth or before birth can be confirmed by measuring
The overlapping of orbitals in benzene is of the type
The IUPAC name for tertiary butyl iodide is
A ligand can also be regarded as
The coefficient of thermal conductivity of copper is $9$ times that of steel. In the composite cylindrical bar shown in the figure, what will be the temperature at the junction of copper and steel ?
A fish in water (refractive index $n$) looks at a bird vertically above in the air. If $y$ is the height of the bird and $x$ is the depth of the fish from the surface, then the distance of the bird as estimated by the fish is
A body is projected vertically upwards. The times corresponding to height $h$ while ascending and while descending are $t_1$ and $t_2$ respectively. Then the velocity of projection is ($g$ is acceleration due to gravity).
The projection of $\vec{a}=3\hat{i}-\hat{j}+5\hat {k} $ on $\vec{b}=2 \hat {i}+3 \hat j+\hat k$ is
Three moles of $PCl_5$, three moles of $PCl_3$ and two moles of $Cl_2$ are taken in a closed vessel. If at equilibrium the vessel has $1.5$ moles of $PCl_5$, the number of moles of $PCl_3$ present in it is
The ten's digit in $1! + 4!+ 7! + 10!+12! + 13! + 15! +16! + 17!$ is divisible by
The characteristic roots of the matrix $\begin{bmatrix} {1}&{0} &{0}\\ {2}&{3}& {0} \\ {4}&{5}&{6}\\ \end{bmatrix} $ are
Mercury is a liquid metal because
Anisole can be prepared by the action of methyl iodide on sodimn phenate. The reaction is called
Which of the following sequences is truly a systemic circulation pathway?
Two similar circular loops carry equal currents in the same direction. On moving the coils further apart, the electric current will
The potential difference between $A$ and $B$ in the following figure is
The chemical name of anisole is