JEE Main questions
34495 published questions with worked solutions.
- A simple pendulum of string length 30 cm performs 20 oscillations in 10s. The length of the string required for the pendulum to...
- The moment of inertia of a square loop made of four uniform solid cylinders, each having radius R and length L(R<L) about an axis...
- Consider light travelling from a medium A to medium B separated by a plane interface. If the light undergoes total internal...
- A 20 m long uniform copper wire held horizontally is allowed to fall under the gravity (g=10 m/s^2) through a uniform horizontal...
- Two small balls with masses m and 2m are attached to both ends of a rigid rod of length d and negligible mass. If angular...
- In a perfectly inelastic collision, two spheres made of the same material with masses 15 kg and 25 kg, moving in opposite...
- In a screw gauge, the zero of the circular scale lies 3 divisions above the horizontal pitch line when their metallic studs are...
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Consider a...Not in JEE Advanced syllabus
- A simple pendulum made of mass 10 g and a metallic wire of length 10 cm is suspended vertically in a uniform magnetic field of 2...
- The equation of the electric field of an electromagnetic wave propagating through free space is given by : E = 377 (6.27 10^3 t -...
- In two separate Young's double-slit experimental set-ups, two monochromatic light sources of different wavelengths are used to...
- Which of the following statements regarding the energy of the stationary state is true in the following oneelectron system ?
- The correct trend in the first ionization enthalpies of the elements in the 3rd period of periodic table is:
- In the given electrochemical cell, Ag(s)|AgCl(s)|FeCl_2(aq), FeCl_3(aq)|Pt(s) at 298 K, the cell potential (E_ cell ) will...
- A cup of water at 5^ (system) is placed in a microwave oven and the oven is turned on for one minute during which, the water...
- Given below are two statements : Statement I : [CoBr_4]^ 2- ion will absorb light of lower energy than [CoCl_4]^ 2- ion....
- Given, (A) n=5, m_l=-1 (B) n=3, l=2, m_l=-1, m_s=+ 1 2 The maximum number of electron(s) in an atom that can have the quantum...
- The statements that are incorrect about the nickel(II) complex of dimethylglyoxime are : A. It is red in colour B. It has a high...
- Identify the molecule X with maximum number of lone pairs of electrons (obtained using Lewis dot structure) among HNO_3, H_2SO_4,...
- Given below are two statements : Statement-I : Sublimation is used for the separation and purification of compounds with low...