List of practice Questions

The polyestrous mammal is

The poisson's ratio cannot have the, value

The Poisson?? ratio of the material is 0.5. If a force is applied to a wire of this material, there is a decrease in the cross-sectional area by 4%. The percentage increase in its length is

The points $ 0, 2 + 3i, i, - 2 - 2i $ in the argand plane are the vertices of a

The points $A(3,2,0)$, $B(5,3,2)$ and $C(0,2,4)$ are the vertices of a triangle. Find the distance of the point $A$ from the point in which the bisector of $??AC$ meets $[BC]$.

The point $(4, 1)$ undergoes the following two successive transformations : (i) Reflection about the line $y = x$. (ii) Translation through a distance of $2$ units along the positive $x$-axis. Then the final coordinates of the point are

The point of intersection of the lines $\frac{x-5}{3}=\frac{y-7}{-1}=\frac{z+2}{1}$; $\frac{x+3}{-36}=\frac{y-3}{2}=\frac{z-6}{4}$ is

The point of temperature inversion between troposphere and ionosphere is called

The point (4, 1) undergoes the following three transformations successively I. Reflection about the line y = x. II. Transformation through a distance 2 units along the positive direction of X-axis. III. Rotation through an angle $\frac{\pi}{4}$ about the origin in the counter clockwise direction. Then, the final position of the point is given by the coordinates

The point $(-2, -3, -4)$ lies in the

The point $(2t^2 + 2t + 4, t^2 + t + 1)$ lies on the line x + 2y = 1 for

The plant cell shrink when placed in a

The plant groups proposed by Aristotle in his classification were

The plane XOZ divides the join of $(1, -1, 5) $ and $(2, 3, 4)$ in the ratio $\lambda :1$ then $\lambda$ is

The plane passing through the point (-2, -2, 2) and containing the line joining the points (1, 1, 1) and (1, -1, 2) makes intercepts on the coordiantes axes, the sum of whose lengths is

The pitch of a screw gauge is $0.5\, mm$ and there are $100$ divisions on it circular scale. The instrument reads $+2$ divisions when nothing is put in between its jaws. In measuring the diameter of a wire, there are $8$ divisions on the main scale and $83^{rd}$ division coincides with the reference line. Then the diameter of the wire is

The $_pK_a$ of acetylsalicylic acid (aspirin) is $3.5$.The $H$ of gastric juice in human stomach is about $2.3$ and the $pH$ in the small intestine is about $8$. Aspirin will be

The piston in the cylinder head of a locomotive has a stroke of $6 \,m$. If the piston executing simple harmonic motion with an angular frequency of $200 \,rad\, min^{-1}$ , its maximum speed is

The physical quantity which has dimensional formula as that of $\frac{Energy}{Mass \,\times\, Length}$ is

The picture below shows three different types of plants (marked as P-I, P-II and P-III) which flower on the basis of their critical photoperiod. Now identify these plants (P-I, II and III).

The physical quantity that has no dimensions is:

The phenomenon in which adsorption and absorption takes place simultaneously is called

The photoelectric current can be increased by

The photoelectric cut off voltage in a certain experiment is $1.5\, V$. The maximum kinetic energy of photoelectrons emitted is

The physical quantity having the same dimensional formula as that of entropy is :