JEE Main questions
34495 published questions with worked solutions.
- In a Young's double slit experiment, the path difference, at a certain point on the screen, between two interfering waves is 18th...
- A rigid diatomic ideal gas undergoes an adiabatic process at room temperature. The relation between temperature and volume for...
- In an experiment, electrons are accelerated, from rest, by applying a voltage of 500 V. Calculate the radius of the path if a...
- An object is at a distance of 20 m from a convex lens of focal length 0.3 m. The lens forms an image of the object. If the object...
- If the de Broglie wavelength of an electron is equal to 10^ -3 times the wavelength of a photon of frequency 6 10^ 14 Hz, then...
- A particle is moving along a circular path with a constant speed of 10 ms^ -1 . What is the magnitude of the change in velocity...
- The force of interaction between two atoms is given by F = (- x^2 kT ); where x is the distance, k is the Boltzmann constant and...
- Two equal resistances when connected in series to a battery, consume electric power of 60 W. If these resistances are now...
- A body is projected at t = 0 with a velocity 10 ms^ -1 at an angle of 60° with the horizontal. The radius of curvature of its...
- Equation of travelling wave on a stretched string of linear density 5 g/m is y = 0.03 sin(450t − 9x) where distance and time are...
- An electromagnetic wave of intensity 50 Wm^ -2 enters in a medium of refractive index 'n' without any loss. The ratio of the...
- If a reaction follows the Arrhenius equation, the plot ln k vs 1 RT gives straight line with a gradient (−y) unit. The energy...
- The concentration of dissolved oxygen (DO) in cold water can go up to:
- Match the metals (Column I) with the coordination compound(s)/enzyme(s) (Column II): List-I: (A) Co (B) Zn (C) Rh (D) Mg List-II:...
- The chloride that CANNOT get hydrolysed is:
- The correct statements among (a) to (d) regarding H_2 as a fuel are: (a) It produces less pollutants than petrol. (b) A cylinder...Not in JEE Main or NEET syllabus
- Peroxyacetyl nitrate (PAN), an eye irritant is produced by:Not in JEE Main or NEET syllabus
- For the cell Zn(s)|Zn^ 2+ (aq)||M^ x+ (aq)|M(s), different half cells and their standard electrode potentials are given below: |...
- A 10 mg effervescent tablet containing sodium bicarbonate and oxalic acid releases 0.25 ml of CO_2 at T = 298.15 K and p = 1 bar....
- The correct order of the atomic radii of C, Cs, Al, and S is: