List of top Questions asked in KEAM

An oil drop of charge q and mass m is in equilibrium in an electric field E. The charge of the oil drop is
Two springs with constants k and 2k are connected in series and a mass m is hanged. The time period of oscillation is
An $\alpha$ particle and proton are accelerated in cyclotron under idential conditions. Find the ratio of their cyclotron frequncy
Find difference in work function of two different metal if their stopping potential are 0.4V and 1.6V respectively.(metals are illuminated with photons of same energy)
A 250W bulb emit light of wavelength 19.6nm. Find the no of electron emitted per second
What is the ration of Debroglie wavemength of proton and neutron if kinetic energy is same for both
A Bar magnet has a magnetic moment M and length l. If its length is reduced to half, find its new magnetic moment.
The graph between displacement and time for a particle moving with uniform acceleration is a ____.
Find the equation of the curve \( (x, y) \) if \( \cos^{-1}(x-2) = \sin^{-1}(y+1) \).
The distance between the foci of the ellipse \(\frac{(x + 2)^{2{9} + \frac{(y - 1)^{2}}{4} = 1\) is}
The circle passing through the point (1, -2) and touching the x-axis at (3,0) also passes through the point
The axis of the parabola \(x^{2} + 6x + 4y + 5 = 0\) is
The value of \(k\), if the circles \(2x^{2} + 2y^{2} - 4x + 6y = 3\) and \(x^{2} + y^{2} + kx + y = 0\) cut orthogonally is
The value of the integral \(\int_{0}^{\pi} \frac{\cos x}{1 + \sin^{2} x} \, dx\) is
The correct increasing order of the acid strength of benzoic acid (I), 4-nitrobenzoic acid (II), 3,4-dinitrobenzoic acid (III) and 4-methoxybenzoic acid (IV) is
X and Y in the below reaction are ______ and ______ respectively

C\(_6\)H\(_5\)–CO\(_2\)H + X \(\xrightarrow{\text{Heat}}\) C\(_6\)H\(_5\)–COCl \(\xrightarrow{\text{H}_2/\text{Pd/BaSO}_4\text{, Quinoline}}\) Y
Reaction of butanone with methylmagnesium bromide followed by hydrolysis gives:
The reagent ‘R’ in the given sequence of chemical reaction is:
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Zr (Z = 40) and Hf (Z = 72) have similar atomic and ionic radii because of:
The horizontal range of a projectile is maximum when the angle of projection is ____.
The de Broglie wavelength associated with an electron accelerated by a potential of 64 V is ____.
The dimensions for the gravitational constant $G$ are ____.
The slope of the tangent drawn on a position-time graph at any instant is equal to the instantaneous ____.
Arrange the following amines in the decreasing order of their basic strength : Aniline (I), Benzylamine (II), p-toluidine (III)
Correct order of acidic strength: