List of practice Questions

XY - plane divides the line joining the points A (2, 3, - 5) and B (-1, -2, -3) in the ratio
Which is the correct thermal stability order for $H_2E$ (E = O. S. Se. Te and $Po$) ?
Which of the following species is not stable ?
Which of the following is incorrect statement ?
Testa and Tegmen of the seed coat represent
An equiconvex lens has power P it is cut into two symmetrical halves by a plane containing the principal axis. The power of one part will be :
The sides of an equilateral triangle are increasing at the rate of 4 cm/sec. The rate at which its area is increasing, when the side is 14 cm.
Of the total incident solar radiation the percentage Photosynthetically Active Radiation (PAR) captured by the plants
The rate of radioactive disintegration at an instant for a radioactive same of half life $2.2 \times 10^9\,s^{-1}$ is $10^{10} \,s^{-1}$. The number of radioactive atoms in that sample at that instant is,
In a potentiometer experiment, the balancing point with a cell is at a length 240 cm. On shunting the cell with a resistance of 2 $\Omega$, the balancing length becomes 120 cm. The internal resistance of the cell is
Though the electron drift velocity is small and electron charge is very small, a conductor can carry an appreciably large current because
The value of $\sqrt{24 . 99}$ is
Which will make basic buffer?
Arrange the following in decreasing order of wavelength.
The number of 4 digit numbers without repetition that can be formed using the digits 1, 2, 3, 4, 5, 6, 7 in which each number has two odd digits and two even digits is
In a cyclotron, a charged particle :
In a cyclotron, a charged particle
The given graph shows the variation of velocity (v) with position (x) for a particle moving along a straight line. Which of the following graph shows the variation of acceleration (a) with position (x)?
A convex lens of focal length 10 cm and refractive index 1.5 is dipped in a liquid of refractive index 1.75. It will behave as
The trajectory of a projectile projected from origin is given by the equation y = x - $\frac{2x^2}{5}$ . The initial velocity of the projectile is
Identify the diagram of heterocyst.
Two bullets are fired horizontally and simultaneously towards each other from roof tops of two buildings 100 m apart and of same height of 200m with the same velocity of 25 m/s. When and where will the two bullets collides. (g =10 m/s$^2$)
Acute angel between the line $\frac{x-5}{2} = \frac{y+1}{-1} = \frac{z+4}{1} $ and the plane 3x - 4y - z + 5 = 0 is
The inverse of the matrix $\begin{bmatrix}2&5&0\\ 0&1&1\\ -1&0&3\end{bmatrix} $ is
f : R $\to$ R and g : [0, $\infty$) $\to$ R is defined by f(x) = $x^2$ and g(x) = $\sqrt{x}$ . Which one of the following is not true?