Recent questions tagged question-paper-1

The number of isomers of $C_6H_{14}$ is

asked Apr 7, 2015 by meena.p

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The de Broglie wavelengths of electron waves in $3:5$ . The ratio of kinetic energy of electrons will be

asked Apr 7, 2015 by meena.p

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The orbital angular momentum of an electron in 2s orbital is

asked Apr 7, 2015 by meena.p

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The number of radial nodes of 3s and 2 p orbitals are respectively.

asked Apr 7, 2015 by meena.p

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The ratio of radii of first three orbits in hydrogen atom is

asked Apr 6, 2015 by meena.p

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The radius of Bohr's first orbit is $Li^{2t}$ is

asked Apr 6, 2015 by meena.p

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For the vaporization process of HI, the molar entropy and molar enthalpy are respectively $89.0\;jk^{-1}$ and $21.16\;kj\;mol^{-1}$. The temperature at which the value of $\delta G$ becomes zero for this process is

asked Apr 6, 2015 by meena.p

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The values of four quantum number of valence electron of an element $n=4,l=0,m=0$ and $s= \large\frac{+1}{2}$. The element is

asked Apr 6, 2015 by meena.p

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The correct order of $ \angle FMF$ bond angles in $NSF_3,SiF_4$ and $PoF_3$ is

asked Apr 6, 2015 by meena.p

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For an irreversible reaction $A \to 2B$ , the rate is increased by four times when the concentration of A is doubled. The incorrect statement about this reaction is

asked Apr 6, 2015 by meena.p

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If the expansion of $(x+\large\frac{\alpha}{x})^n$ and $(x+\large\frac{\beta}{x^2})$ in power of x have one term independently of x, the n is divisible by

asked Mar 3, 2015 by meena.p

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The area of the region bounded by $y= |x-1| $ and $y=1$ is

asked Mar 3, 2015 by meena.p

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Let $E$ be the ellipse $ \large\frac{x^2}{9} +\frac{y^2}{4}$$=1$ and C be the circle $x^2+y^2=9$. Let P and Q be the points $(1,2)$ and $(2,1)$ respectively Then

asked Mar 3, 2015 by meena.p

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Let $ \alpha, \beta, \gamma$ be distinct real numbers points with position vector $\alpha\overrightarrow{i}+\beta \overrightarrow {i} + \gamma \overrightarrow {k},\beta\overrightarrow{i}+\beta \overrightarrow {i} + \gamma \overrightarrow {k},r\overrightarrow{j}+\alpha \overrightarrow {j} + \beta\overrightarrow {k}$,

asked Mar 3, 2015 by meena.p

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The circle $x^2+y^2-10x+16 =0$ and $ x^2+y^2=r^2$ intersect each other in two distinct points if

asked Mar 3, 2015 by meena.p

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Which one of the following curves cuts the parabola $y^2=4ax$ at right angles ?

asked Mar 3, 2015 by meena.p

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The equations to a pair of opposite sides of parallelogram are $ x^2-5x+6=0$ and $y^2-6y+5=0$ . The equations to its diagonals are

asked Mar 3, 2015 by meena.p

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For a real number $x,[x]$ denotes the integral part of x the value of $ \bigg[ \large\frac{1}{2}\bigg]+\bigg[\large\frac{1}{2}+\frac{2}{100}\bigg] +.....+ \bigg[ \large\frac{1}{2}+\frac{99}{100}\bigg]$ is

asked Mar 2, 2015 by meena.p

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The locus of a variable point whose distance from $(-2,0) $ is $\large\frac{2}{3}$ times its distance from the line $x = \large\frac{-9}{2}$ is

asked Mar 2, 2015 by meena.p

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Let $2 \sin ^2 x + 3 \sin x -2 >0$ and $x^2-x-2 < 0$ (x is measured in radians). Then x lies in the interval

asked Mar 2, 2015 by meena.p

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Let $2 \sin ^2 x + 3 \sin x -2 >0$ and $x^2-x-2 < 0$ (x is measured in radians). Then x lies in the interval

asked Mar 2, 2015 by meena.p

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If we consider only the principal values of the inverse trigonometric function Then the value of $ \tan \bigg[\cos ^{-1} \large\frac{1}{5 \sqrt 2} -$$ \sin ^{-1} \large\frac{4}{\sqrt{17}}\bigg]$ is

asked Mar 2, 2015 by meena.p

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An unbiased die is tossed until a number greater than 4 appears. The probability that an even number of tossed needed is

asked Mar 2, 2015 by meena.p

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If the length of the sides of triangle are $3,5,7$ then the largest angle of the triangle is

asked Mar 2, 2015 by meena.p

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If $y =(\sin x)^{\tan x}$ then $\large\frac{dy}{dx}$ is equal to

asked Mar 2, 2015 by meena.p

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Let n be a positive integer such that $ \sin \large\frac{\pi}{2n} $$+\cos \large\frac{\pi}{2n} =\frac{\sqrt n }{2}$ Then,

asked Mar 2, 2015 by meena.p

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If $y =4x-5$ is tangent to the curve $y^2=px^3+q$at $(2,3)$ then

asked Mar 2, 2015 by meena.p

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A box contains 24 identical balls of which 12 are white and 12 are black . The balls are drawn at random from the box one at a time with replacement . The probability that a white ball is drawn for the 4th time on the 7th draw is

asked Feb 28, 2015 by meena.p

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Let A,B,C be three mutually independent event. Consider the two statements $S_1$, and $S_2;S_1:A$ and $ B \cap C$ are independent .$S_1:A$ and $ B \cap C$ are independent . Then

asked Feb 28, 2015 by meena.p

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Let $0 < x > \large\frac{\pi}{4}$.Then $(\sec 2x- \tan 2x)$ equal

asked Feb 28, 2015 by meena.p

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Let p and q be the position vectors of P and Q respectively, with respect to O and $|P|=P,|q|=q$ The points R and S divide POQ internally and externally in the ratio $2:3$ respectively. If OR and OS are perpendicular then

asked Feb 28, 2015 by meena.p

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The equation $2x^2+3y^2 -8x+18y +35=k$ represents

asked Feb 27, 2015 by meena.p

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The equation $2x^2+3y^2-8x+18y+35=k$ represents

asked Feb 27, 2015 by meena.p

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The number of points of intersection of the two curve. $y=2 \sin x$ and $y= 5x^2+2x+3$ is

asked Feb 27, 2015 by meena.p

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Let $f(x) = \left\{ \begin{array} {1 1} 0, & \quad x <0 \\ x^2,& \quad x \geq 0 \end{array} \right. $ Then for all x

asked Feb 27, 2015 by meena.p

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Let $p,q \in \{1,2,3,4\}$.The number of equation of the form $px^2+qx+1=0$ having real roots is

asked Feb 27, 2015 by meena.p

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The function f defined by $f(x) =(x+2)e^{-x}$ is

asked Feb 27, 2015 by meena.p

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If $ln (a+c), ln (a-c),ln(a-2b+c)$ are in A.P , then

asked Feb 27, 2015 by meena.p

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If $w$ is an imaginary cube root of unity, then the value of $\sin \{(w^{10}+w^{23})\pi -\large\frac{\pi}{4} \}4 is

asked Feb 27, 2015 by meena.p

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Let $\alpha $ and $\beta$ be the roots of the equation whose roots are $\alpha^{19}, \beta^7$ is

asked Feb 27, 2015 by meena.p

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