JEE Main questions
34495 published questions with worked solutions.
- An inductance coil has a reactance of 100 . When an AC signal of frequency 1000 Hz is applied to the coil, the applied voltage...
- Two uniform circular discs are rotating independently in the same direction around their common axis passing through their...
- A 10 capacitor is fully charged to a potential difference of 50 V. After removing the source voltage it is connected to an...
- When the temperature of a metal wire is increased from 0°C to 10°C, its length increases by 0.02%. The percentage change in its...
- In a plane electromagnetic wave, the directions of electric field and magnetic field are represented by k and 2 i -2 j ,...
- A particle is moving 5 times as fast as an electron. The ratio of the de-Broglie wavelength of the particle to that of the...
- A light ray enters a solid glass sphere of refractive index = 3 at an angle of incidence 60°. The ray is both reflected and...
- A wire of density 9 10^ -3 kg cm ^ -3 is stretched between two clamps 1 m apart. The resulting strain in the wire is 4.9 10^ -4 ....
- Cast iron is used for the manufacture of :Not in JEE Main or NEET syllabus
- Two compounds A and B with same molecular formula ( C_3H_6O ) undergo Grignard's reaction with methylmagnesium bromide to give...
- The shape/structure of [ XeF_5 ]^- and XeO_3F_2 , respectively, are :
- The major product obtained from E_2-elimination of 3-bromo-2-fluoropentane is :
- Three elements X, Y and Z are in the 3rd period of the periodic table. The oxides of X, Y and Z, respectively, are basic,...
- The number of subshells associated with n = 4 and m = –2 quantum numbers is :
- The results given in the below table were obtained during kinetic studies of the following reaction: 2A+B C+D | Experiment |...
- The size of a raw mango shrinks to a much smaller size when kept in a concentrated salt solution. Which one of the following...
- Two elements A and B have similar chemical roperties. They don't form solid hydrogencarbonates, but react with nitrogen to form...
- Amongst the following statements regarding adsorption, those that are valid are : (a) H becomes less negative as adsorption...Not in JEE Main or NEET syllabus
- Match the type of interaction in Column A with the distance dependence of their interaction energy in Column B : | A | B |...
- The correct observation in the following reactions is : Sucrose [ (Hydrolysis) ] Glycosidic bond Cleavage A+B Seliwanoff's...