List of top Questions asked in JEE Main, KCET

If n+1Cr+1: nCr: n-1Cr-1 = 55: 35: 21 then the value of n + r is _____.
The locus of P such that the ratio of distance P from A(3, 1) and B(1, 2) is 5 : 4 is
The 315th word in dictionary arranged in order for the word ‘NAGPUR’ is
Product B is:
ethoxy benzene reacts with HNO3/H2SO4
For a certain reaction, ΔHr is 400 kJ/mol and ΔS=0.2 kJ/mol K. Above what minimum temperature in Kelvin, the reaction becomes spontaneous.
Find out the shortest wavelength of paschen series for H- atom
Which of the following d-block elements has maximum unpaired electron in ground state electronic configuration?
Match the column.
Column-I
(Compounds)		Column-II
(Configurations)
A.TiCl4(1)e3t23
B.FeO42-(2)e2t20
C.FeCl42-(3)e2t23
D.MnCl42-(4)e0t20
Which of the following statement is incorrect-
Among the following anions, identify the anion which gives pale yellow precipitate with aq. AgNO3. The precipitate is partially soluble in aq. NH4OH solution.
IUPAC name of complex compound [Pt(Br)2(PPh3)2].
The correct expression for Bernoulli's theorem is (the symbols have their usual meaning)
The PV curve shown in the diagram consists of two isothermal and two adiabatic curves. Then:
consists of two isothermal and two adiabatic curves
In a series LCR Circuit, the value of resistance as well as (XL - XC) is halved, then the new current amplitude (I2) will satisfy: (I1 is old current amplitude)
In a clock, second hand and minute hand are of 75 cm and 60 cm respectively. After 30 minutes, ratio of distance travelled by the tip of second hand to that of minute hand is x. Find x.
If the resultant of the vectors shown in A√x, find x.
the resultant of the vectors
A ball initially at rest, breaks into two masses m1 and m2 that move with speed 11 and v2 respectively as shown. The ratio of the kinetic energy of the right mass to the left mass is:
A ball of mass 150 gm moving with speed 20m/s is catched in 0.1 sec. find the average force exerted by the hands.
In an electron and a proton are having the same kinetic energy, find the ratio of their linear momentum. (mass of electron = 9.1 x 10-31 kg, mass of proton = 1.67 × 10-27 kg)
For the given logic circuit, the correct relation between the input (A, B) and the output (Y) is
given logic circuit, the correct relation
The organ pipe having same length, one is open while the other is closed. Find ratio of 7th overtone of those organ pipes.
Two planets of mass m1 and m2 are revolving around their orbits r and r2 respectively. Angular momentum of planets are in ratio of 3 then T1/T2 is___
(T1 and T2 are periods of revolutions)
From a rectangular sheet, the shaded portion is removed. Find the co- ordinates of the center of mass after the portion has been removed.
a rectangular sheet, the shaded portion is removed
If radius of earth reduced by one fourth of its present value, then duration of days will be
An electromagnetic radiation of intensity 360 W /cm2 is incident normally on a non-reflecting surface having area A. Average force on the surface is found to be 2.4 x 10-4 N. Find the value of A.