List of practice Questions

Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen ?
Which among these is the correct combination of aquatic mammals ?
In case of poriferans, the spongocoel is lined with flagellated cells called:
An important characteristic that Hemichordates share with Chordates is :
An urn contains five balls. Two balls are drawn and found to be white. The probability that all the balls are white is
Given the system of straight lines a $(2x + y - 3) + b(3x + 2y - 5) = 0$, the line of the system situated farthest from the point $(4, -3)$ has the equation

Young's modulus is defined as the ratio of

The output of a step down transformer is measured to be $48\, V$ when connected to a ${12 \, W}$ bulb. The value of peak current is
The speed of light is vacuum is equal to
The electronegativities of $C, N, Si$ and $P$ are in the order of
The mean energy of a molecule of an ideal gas is
Which one of the following is not a common component of photo-chemical smog ?
A coil of inductive reactance $1/ \sqrt{3}\, O$ and resistance $1 \, \Omega$ is connected to a $200\, V$, $50\,Hz \,A.C.$ supply. The time lag between maximum voltage and current is
Which of the following is not a biodegradable polymer ?
The point on the curve $y^2 = x$ where the tangent makes an angle of $\pi /4$ with X-axis is
If $A = 2 \hat{i} + 3 \hat{j} + 8 \hat{k}$ is perpendicular to $B= 4 \hat{i} + 4 \hat{j} + \alpha \hat{k}$, then the value of $\alpha$ is
In a nuclear reactor the function of the Moderator is to decrease
The magnetic field at the center of a current carrying loop of radius $0.1\, m$ is $5 \sqrt{5}$ times that at a point along its axis. The distance of this point from the centre of the loop is
Two balls are thrown simultaneously in air. The acceleration of the centre of mass of the two balls when in air,
The eccentricity of the ellipse $\frac{x^2}{36} + \frac{y^2}{16} = 1$ is
Which of the following atoms should have the highest $1^{\text{st}]$ electron affinity?
Let $A(2, -3)$ and $B (-2, 1)$ be two angular points of $\Delta ABC$. If the centroid of the triangle moves on the line $2x + 3y = 1$, then the locus of the angular point $C$ is given by
Let $f(x) = x^{13} + x^{11} + x^9 + x^7 + x^5 + x^3 + x + 19$. Then $f(x) = 0$ has
The closed and open organ pipes have same length. When they are vibrating simultaneously in first overtone, produce three heats. The length of open pipe is made $\frac{1}{2}^{nd}$ and closed pipe is made three times the original, the number of beats produced will be
The locus of the mid-points of the chords of the circle $x^2 + y^2 + 2x - 2y - 2 = 0$ which make an angle of $90�$ at the centre is