JEE Main questions
34495 published questions with worked solutions.
- Starting from the origin at time t = 0, with initial velocity 5 j ms ^ -1 , a particle moves in the x-y plane with a constant...
- Dimensional formula for thermal conductivity is (here K denotes the temperature)
- The specific heat of water = 4200 J kg ^ -1 K ^ -1 and the latent heat of ice = 3.4 10^5 J kg ^ -1 . 100 grams of ice at 0ºC is...
- A small bar magnet placed with its axis at 30º with an external field of 0.06 T experiences a torque of 0.018 Nm. the minimum...Not in JEE Advanced syllabus
- A battery of 3.0 V is connected to a resistor dissipating 0.5 W of power. If the terminal voltage of the battery is 2.5 V, the...
- A beam of plane polarised light of large cross-sectional area and uniform intensity of 3.3 Wm ^ -2 falls normally on a polariser...
- In a compound microscope, the magnified virtual image is formed at a distance of 25 cm from the eye-piece. The focal length of...
- A closed vessel contains 0.1 mole of a monatomic ideal gas at 200 K. If 0.05 mole of the same gas at 400 K is added to it, the...
- A circular disc of mass M and radius R is rotating about its axis with angular speed _1. If another stationary disc having radius...
- On combustion Li, Na and K in excess of air, the major oxides formed, respectively, are-Not in JEE Main or NEET syllabus
- The elements with atomic numbers 101 and 104 belong to, respectively-
- The number of isomers possible for [ Pt(en)(NO_2)_2 ] is-
- The region in the electromagnetic spectrum where the Balmer series lines appear is-
- What are the functional groups present in the structure of maltose ?
- On heating, lead (II) nitrate gives a brown gas (A). The gas (A) on cooling changes to a colourless solid/liquid (B). (B) on...
- Match the following : List-I: (i) Foam (ii) Gel (iii) Aerosal (iv) Emulsion List-II: (a) smoke (b) cell fluid (c) jellies (d)...Not in JEE Main or NEET syllabus
- The pair in which both the species have the same magnetic moment (spin only) is-
- For one mole of an ideal gas, which of these statements must be true ? (a) U and H each depends only on temperature (b)...
- Among statements (a) – (d), the correct ones are- (a) Lime stone is decomposed to CaO during the extraction of iron from its...Not in JEE Main or NEET syllabus
- The ionic radii of O^ 2- , F^- , Na^+ and Mg^ 2+ are in the order