List of practice Questions

Which of the following facilitates opening of stomatal aperture ?
A magnetic dipole in a constant magnetic field has :
A magnetic needle of magnetic moment $6.7 \times 10^{-2} \, Am^2$ and moment of inertia $7.5 \times 10^{-6} \, kg \, m^2$ is performing simple harmonic oscillations in a magnetic field of $0.01\, T$. Time taken for $10$ complete oscillations is :
On treatment of $100\, mL$ of $0.1\, M$ solution of $CoCl _{3} \cdot 6 H _{2} O$ with excess $AgNO _{3} ; 1.2 \times 10^{22}$ ions are precipitated. The complex is
Preeti reached the metro station and found that the escalator was not working. She walked up the stationary escalator in time $t_1$. On other days, if she remains stationary on the moving escalator, then the escalator takes her up in time $t_2$. The time taken by her to walk up on the moving escalator will be
When the heat of reaction at constant pressure is \(-5 \times 10^3\) cal and the entropy change is \(7.4 \, \text{cal} \, \text{deg}^{-1}\) at \(25^\circ\text{C}\), the reaction is predicted as
Predict the correct intermediate and product in the following reaction :
Anaphase Promoting Complex (APC) is a protein degradation machinery necessary for proper mitosis of animal cells. If APC is defective in a human cell, which of the following is expected to occur ?
Asymptote in a logistic growth curve is obtained when :
In Bougainvillea thorns are the modifications of :
A rope of negligible mass is wound round a hollow cylinder of mass $3 \,kg$ and radius $40 \,cm$. If the rope is pulled with a force of $30 \,N$, then the angular acceleration produced in the cylinder is
The e.m.f. of a Daniell cell at $298\, K$ is $E _{1}$. $Zn / SO _{4}(0.01 M ) \| CuSO _{4}(1.0 M ) / Cu$ When the concentration of $ZnSO _{4}$ is $1.0\, M$ and that of $CuSO _{4}$ is $0.01\, M$, the e.m.f. is changed to $E _{2}$. What is the relationship between $E _{1}$ and $E _{2}$ :
Organ of Corti is located on the ________
The magnetic moment of electron due to orbital motion is proportional to (n = principal quantum number)
The secretory phase in the human menstrual cycle is also called as
A metal crystallises in a face centred cubic structure. If the edge length of its unit cell is $'a'$, the closest approach between two atoms in metallic crystal will be :
Identify the wrong combination
From the given four positions of a single dice, find the colour at the face opposite to the face having red colour.
four positions of a single dice
Choose the answer figure which completes the problem figure matrix.
the problem figure matrix.
In the following question five figures are given. Out of them, find the three figures that can be joined to form a square.
the three figures that can be joined to form a square.
In a certain code language, 'DOME' is written as '8943' and 'MEAL' is written as '4321'. What group of letters can be formed for the code '38249'?
Replace the question mark (?) in the series given below with the correct option.
4, 5, 7, 11, 19, 35,?
Complete the series by replacing '?' mark.
G4T, J9R, M20P, P43N, S90L, ?
Neeraj starts walking towards South. After walking 15 m, he turns towards North. After walking 20 m, he turn towards East and walks 10 m. He then turns towards South and walks 5 m. How far is he from his original position and in which direction?
Shikha is mother-in-law of Ekta who is sister-in-law of Ankit. Pankaj is father of Sanjay, the only brother of Ankit. How is Shikha related to Ankit?