List of practice Questions

If one can induce parthenocarpy through the application of growth substances which fruits would you select to induce parthenocarpy and why?

A compound is formed by substitution of two chlorine for two hydrogens in propane. The number of possible isomeric compounds is 

If nt number of radioatoms are present at time t, the following expression will be a constant : 

The velocity of the most energetic electrons emitted from a metallic surface is doubled when the frequency v of the incident radiation is doubled. The work function of this metal is

Find four numbers forming a geometric progression in which the third term is greater than the first term by 9, and the second term is greater than the 4^th by 18.

Consider a cylindrical conductor of Length L and area of cross section A. The specific conductivity varies as $\sigma (x) = \sigma_0 \frac{L}{\sqrt{x}}$ where x is the distance along the axis of the cylinder from one of its ends. The resistance of the system along the cylindrical axis is

See the figure and find the ratio of
(a) Number of triangles to the number of circles inside the rectangle.
(b) Number of squares to all the figures inside the rectangle.
(c) Number of circles to all the figures inside the rectangle.

As a result of change in the magnetic flux linked to the closed loop shown in the figure, an emf V volt is induced in the loop. The work done (joules) in taking a charge Q coulomb once along the loop is:
 

Conjugate acid of $SO_4^{2-}$ is

List various types of isomerism possible for coordination compounds, giving an example of each

Sweety runs around a square park of side 75 m. Bulbul runs around a rectangular park with length 60 m and breadth 45 m. Who covers less distance?

The probability that a non-leap year will have only 52 Fridays is

The domain of $\cos^{-1} \sqrt{2x}$ is

Five square flower beds each of sides 1 m are dug on a piece of land 5 m long and 4 m wide. What is the area of the remaining part of the land?

Which of the following relation is NOT a function

Imagine that you are sitting in a chamber with your back to one wall. An electron beam, moving horizontally from back wall towards the front wall, is deflected by a strong magnetic field to your right side. What is the direction of magnetic field?

In a stationary wave along a string the strain is

If Meena gives an interest of Rs 45 for one year at 9% rate p.a.. What is the sum she has borrowed?

Out of dia, para and ferromagnetism, the universal property of all substances is

The tenth element in the periodic table resembles the element with atomic number

Direct nitration of aniline is not a feasible process because

The ground state energy of hydrogen atom is –13.6 eV. What are the kinetic and potential energies of the electron in this state?

Find the areas of the squares whose sides are : (a) 10 cm (b) 14 cm (c) 5 m.