Practice questions
88551 published questions with worked solutions.
- A wheel is rolling on a plane surface. The speed of a particle on the highest point of the rim is 8 m/s. The speed of the...
- Two polarisers P_1 and P_2 are placed in such a way that the intensity of the transmitted light will be zero. A third polariser...
- Consider a rectangular sheet of solid material of length = 9 cm and width d = 4 cm. The coefficient of linear expansion is = 3.1...
- There are n number of identical electric bulbs, each is designed to draw a power p independently from the mains supply. They are...
- A cylindrical rod of length 1 m and radius 4 cm is mounted vertically. It is subjected to a shear force of 10^5 N at the top....
- A block of mass 25 kg is pulled along a horizontal surface by a force at an angle 45° with the horizontal. The friction...
- An inductor of self inductance 1 H is connected in series with a resistor of 100 ohm and an ac supply of 100 volt, 50 Hz. Maximum...
- A particle of charge 1.6 and mass 16 is present in a strong magnetic field of 6.28 T. The particle is then fired perpendicular to...
- A solid sphere with uniform density and radius R is rotating initially with constant angular velocity ( _1) about its diameter....
- In a Young's double slit experiment, two slits are located 1.5 mm apart. The distance of screen from slits is 2 m and the...
- The incorrect relationship in the following pairs in relation to ionisation enthalpies is
- Consider the ground state of chromium atom (Z = 24). How many electrons are with Azimuthal quantum number l = 1 and l = 2...
- A toxic compound "A" when reacted with NaCN in aqueous acidic medium yields an edible cooking component and food preservative...
- Given below are two statements : Statement I : Alcohols are formed when alkyl chlorides are treated with aqueous potassium...
- 'X' is the number of electrons in t_ 2g orbitals of the most stable complex ion among [Fe(NH_3)_6]^ 3+ , [FeCl_6]^ 3- ,...
- Given below are two statements: Statement (I): Molal depression constant K_f is given by M_1RT_f S_ fus , where symbols have...
- Half life of zero order reaction A → product is 1 hour, when initial concentration of reactant is 2.0 mol L^ -1 . The time...
- Match List I with List - II. List – I (Separation of): (A) Aniline from aniline-water mixture (B) Glycerol from spent-lye in soap...
- Given below are two statements: Statement (I) : The first ionisation enthalpy of group 14 elements is higher than the...
- The elements of Group 13 with highest and lowest first ionisation enthalpies are respectively: