List of practice Questions

Which is characteristic feature of plant cell

\(500 \,g\) of water and \(100\, g\) of ice at \(0^{\circ}C\) are in a calorimeter whose water equivalent is \(40\, g\). \(10\, g\) of steam at \(100^\circ C\) is added to it. Then water in the calorimeter is : (Latent heat of ice \(= 80\, cal/g\), Latent heat of steam \(=540\, cal/g\))

A stone falls freely under gravity. It covers distances $h_1, h_2$ and $h_3$ in the first 5 seconds, the next 5 seconds and the next 5 seconds respectively. The relation between $h_1, h_2$ and $h_3$ is :-

Infection of Ascaris usually occurs by

A rod PQ of mass M and length L is hinged at end P. The rod is kept horizontal by a massless string tied to point Q as shown in figure. When string is cut, the initial angular acceleration of the rod is:

Dipole induced dipoloe interactions are present in which of the following pairs :-

Identify the correct order of solubility in aqueous medium :

In Goldschmidt aluminothermic process which of the following reducing agents is used:

Copper crystallises in fcc with a unit length of $361\,pm$. What is the radius of copper atom ?

In which of the following pairs of molecules/ions both the species are not likely to exist?

In a face centred cubic lattice, atoms of $A$ form the comer points and atoms of $B$ form the face centred points. If two atoms of $A$ are missing from the comer points, the formula of the ionic compound is :

Inflorescence is racemose in

Secondary productivity is rate of formation of new organic matter by

Among bitter gourd, mustard, brinjal, pumpkin chinarose, lupin, cucumber, sunnhemp, gram, guava, bean, chilli, plum, petunia, tomato, rose, withania, potato, onion, aloe and tulip how many plants have hypogynous flower ?

Isogamous condition with non flagellated gametes is found in

How many plants among China rose, Ocimum, sunflower, mustard, Alstonia, guava, Calotropis and Nerium (oleander) have opposite phyllotaxy?

Which of the following criteria does not pertain to facilitated transport?

Interfascicular cambium develops from cells of

For the given LPP (Linear Programming Problem) max $ z=5x+3y $ $ 2x+y\le 12 $ $ 3x+2y\le 20 $ $ x\ge 0,\,y\ge 0 $ the optimal solution set is

If $ \left\{ \begin{matrix} \frac{(1-\cos \,4x)}{{{x}^{2}}}, & if & x<0 \\ a, & if & x=0, \\ \frac{\sqrt{x}}{\sqrt{(16+\sqrt{x})}-4}, & if & x>0 \\ \end{matrix} \right. $ then $ f(x) $ is continuous at $ x=0, $ for $a = ?$

Suppose $ {{A}_{1}},{{A}_{2}}.....,{{A}_{30}} $ are thirty sets each with five elements and $ {{B}_{1}},{{B}_{2}}.....,{{B}_{n}} $ are 'n' sets each with three elements. Let $ \underset{i=1}{\mathop{\overset{30}{\mathop{\cup }}\,}}\,\,\,{{A}_{i}}=\underset{j=1}{\mathop{\overset{n}{\mathop{\cup }}\,}}\,\,\,\,{{B}_{j}}=S. $ Assume that each element of S belongs to exactly 10 of $ {{A}_{I}}'s $ and exactly 9 of $ {{B}_{j}}'s, $ then the value of $n$ is

If $ S=\{(a,\,b):b=|a-1|,a\in Z $ and $ |a|<3\}, $ where $Z$ denotes the set of integers. Then, the range set of $S$ is

If $ \left| \begin{matrix} x+7 & 5 \\ x+-3 & 3 \\ \end{matrix} \right|=26, $ then x is equal to

Find the value of $ {{\cos }^{-1}}\left( \frac{4}{5} \right)+{{\tan }^{-1}}\left( \frac{3}{5} \right) $ .