List of top Questions asked in KCET

At the mid point along the length of a long solenoid, the magnetic field is equal to x. If the length of the solenoid is doubled and the current is reduced to half, the field at the new mid point will be nearest to
$1000$ drops of water of radius $1\,cm$ each carrying a charge of $10\, esu$ combine to form a single drop. The capacitance of combined drop increases
Two parallel wires carry electric current in same direction. The wires
In India electricity is supplied for domestic use at $220\, V$. It is supplied at $110 \,V$ in USA. If the resistance of a $60 \,W$ bulb for use in India is $R$, the resistance of a $60 \,W$ bulb for use in USA will be
An example of a non ohmic device is
A red flower seen through a green glass looks
Four resistors of $100\,\Omega$ each are connected in the form of a square. Then the effective resistance along the diagonal point is
Resistance of an ideal ammeter is
An electron in motion is associated with
The statement "algebraic sum of currents meeting at a node is zero" is
Sky seen from earth appears blue because of
When light passes form one medium to another, there is a change in
Figures below show four ways of making a regular hexagon out of wires of two different kinds P, Q with current beafls at the middle of opposite wires, the magnetic field at the centre of the hexagon is not zero in
Unpolarised light converts to partially or plane polarised light by many processes, Which of the following does not do that ?
The units of Planck's constant are
The number of neutrons in a $_{92}U^{235}$ nucleus is
The door of a domestic refrigerator is kept open while the switch is on. Then the room will
In terms of Rydberg constant R, the shortest wavelength in Balmer series of hydrogen atom spectrum will have wavelength
A satellite in a circular orbit of radius $R$ has a period of $4\,hours$. Another satellite with orbital radius $3 \, R$ around the,same planet will have a period (in hours)
Optical fiber works on the principle of
The direction of force acting on a current carrying conductor at right angles to a magnetic field is given by
The botanical name of the peepal tree is
Water is falling on the blades of a turbine at a rate of $6000 \,kg \,min ^{-1}$. The height of fall is $100\, m$. The power given to the turbine is
Which of the following does not have stomata?
A system exhibiting SHM must possess