Physics questions
20027 published questions with worked solutions.
- 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 ....
- A total of 48 J heat is given to one mole of helium kept in a cylinder. The temperature of helium increases by 2°C. The work done...
- In finding out refractive index of glass slab the following observations were made through travelling microscope: 50 vernier...
- In the given electromagnetic wave E_y = 600 sin(ωt − kx) Vm⁻¹, intensity of the associated light beam is (in W/m²): (Given ε₀ = 9...
- Assuming the earth to be a sphere of uniform mass density, a body weighed 300 N on the surface of earth. How much it would weigh...
- The acceptor level of a p-type semiconductor is 6 eV. The maximum wavelength of light which can create a hole would be: Given hc...Not in JEE Advanced syllabus
- A car of 800 kg is taking turn on a banked road of radius 300 m and angle of banking 30°. If coefficient of static friction is...
- Two identical conducting spheres P and S with charge Q on each, repel each other with a force 16N. A third identical uncharged...
- In a coil, the current changes from −2 A to +2A in 0.2 s and induces an emf of 0.1 V. The self inductance of the coil is:
- For the thin convex lens, the radii of curvature are at 15 cm and 30 cm respectively. The focal length of the lens is 20 cm. The...
- A body of weight 200 N is suspended from a tree branch through a chain of mass 10 kg. The branch pulls the chain by a force equal...
- When UV light of wavelength 300 nm is incident on the metal surface having work function 2.13 eV, electron emission takes place....
- When kinetic energy of a body becomes 36 times of its original value, the percentage increase in the momentum of the body will be:
- Pressure inside a soap bubble is greater than the pressure outside by an amount: (given: R = Radius of bubble, S = Surface...
- In a vernier calliper, when both jaws touch each other, zero of the vernier scale shifts towards left and its 4th division...
- Given below are two statements: Statement (I): Dimensions of specific heat is [L²T⁻²K⁻¹] Statement (II): Dimensions of gas...
- A body projected vertically upwards with a certain speed from the top of a tower reaches the ground in t₁. If it is projected...