List of practice Questions

The depth $d$ at which the value of acceleration due to gravity becomes $\frac {1} { n}$ time the value at the surface is (R be the radius of the earth)
The magnification of an image by a convex lens is positive only when the object is placed
The molecular geometry of $BF_3$ is
The number of photons emitted per second by a $60\, W$ source of monochromatic light of wavelength $663\, nm$ is $ (h=6.63\times {{10}^{-34}}Js) $
The power factor of $LCR$ circuit at resonance is
The propulsion of a rocket is based on the principle of conservation of
The ratio of the respective de Broglie wavelengths associated with electrons accelerated from rest with the voltages 100 V, 200 V and 300 V is

Chef is related to Restaurant in the same way as Druggist is related to

Find the missing number:
5, 8, 28, 162, ?, 12870

Find the odd man out.
2, 5, 10, 17, 26, 37, 50, 64

Find the Odd man out.

396, 462, 572, 427, 671, 264

Problem Figure:

the figure matrix

Find the odd man out.
331, 482, 551, 263, 383, 362, 284

If the alphabets are written in the sequence of a, bb, ccc, dddd, eeeee, ffffff, …. What will be the 120th letter?

Reptile is to lizard as flower is to

Select a suitable figure from the four alternatives that would complete the figure matrix.

$ \frac{1}{\cos 80{}^\circ }-\frac{\sqrt{3}}{\sin 80{}^\circ } $ is equal to:
$ \tan\left(\frac{\pi}{4} +\frac{\theta}{2}\right) + \tan\left(\frac{\pi}{4} - \frac{\theta}{2}\right)$ is equal to
An integrating factor of the differential equation $xdy - ydx + x^2e^xdx = 0$ is
If $ A= \begin{bmatrix} 1 & 0 & 0 \\ x & 1 & 0 \\ x & x & 1 \\ \end{bmatrix} $ and $ I= \begin{bmatrix} 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \\ \end{bmatrix} , $ then $ {{A}^{3}}-4{{A}^{2}}+3A+I $ is equal to
If $p : 2$ plus $3$ is five and $q $ : Delhi is the capital of India < are two statements, then the statement "Delhi is the capital of India and it is not that $2$ plus $3$ is five" is
If $tan \left(\frac{\theta}{2}\right)=\frac{2}{3}$, then $sec\,\theta $ is equal to
If the two pair of lines $ {{x}^{2}}-2mxy-{{y}^{2}}=0 $ and $ {{x}^{2}}-2nxy-{{y}^{2}}=0 $ are such that one of them represents the bisector of the angles between the other, then:

If \((x)=\log \left( \frac{1+x}{1-x} \right),-1\).

The angle between the planes $3x + 4y + 5z = 3$ and $4 x-3 y + 5z = 9$ is equal to