List of top Questions asked in JKCET

A perfect black body is one whose emissive power is
What is the mass of $ 2\,L $ of nitrogen at $ 22.4\,arm $ pressure and $ 273\,K $ ?
The chemical equivalent of copper and zinc are $32$ and $108$ respectively. When copper and silver voltmeter are connected in series and electric current is passed through for sometimes, $ 1.6\,g $ of copper is deposited. Then, the mass of silver deposited will be
The electric field due to an electric dipole at a distance $r$ from its centre in axial position is $E$. If the dipole is rotated through an angle of $ 90^{\circ} $ about its perpendicular axis, the electric field at the same point will be
Two simple pendulums of lengths $ 1.44\,m $ and $ 1 m $ start swinging together. After how many vibrations will they again start swinging together?
Three sources of equal intensities with frequencies $400,401$ and $402\, vib/s$ are sounded together. The number of beat/s is
A wave has velocity $u$ in medium $P$ and velocity $ 2u $ in medium $Q$. If the wave is incident in medium $P$ at an angle $ 30^{\circ}, $ then the angle of refraction will be
Methylphenyl ether can be obtained by reacting
For spheres each of mass $M$ and radius $R$ are placed with their centres on the four comers $A, B, C$ and $D$ of a square of side $b$. The spheres $A$ and $B$ are hollow and $C$ and $D$ are solids. The moment of inertia of the system about side $AD$ of square is
Two pendulums begin to swing simultaneously. If the ratio of the frequency of oscillations of the two is $ 7:8, $ then the ratio of lengths of the two pendulums will be
A particle describes a horizontal circle in a conical funnel whose inner surface is smooth with speed of $ 0.5\,m/s $ . What is the height of the plane of circle from vertex of the funnel?
$ 2\,g $ of water condenses when passed through $ 40\,g $ of water initially at $ 25^{\circ}C $ . The- condensation of steam raises the temperature of water to $ 54.3^{\circ}C $ . What is the latent heat of steam?
The spectral energy distribution of a star is maximum at twice temperature as that of sun. The total energy radiated by star is
The edible part of the sweet potato is a modified:
The surface of the Endoplasmic Reticulum (ER) is covered with :
In Chlamydomonas the meiosis occurs in :
Radish is a modified root and an example of:
Phosphorus is present in :
Which of the following is a $ C_{4} $ plant?
Which of the following plants is used as biofertilizer?
The prokaryotic cell does not contain :
The conversion of ammonia into nitrites and nitrates is called :
The capitulum type of inflorescence is found in :
Genes were first artificially synthesized by :
The leaves in Utricularia plant are modified into: