Physics questions
20027 published questions with worked solutions.
- The percentage error in the calculated volume of a sphere, if there is 2% error in its diameter measurement, is _______.
- Match List - I with List - II. List - I: A. Boltzmann constant, B. Stefan's constant, C. Planck's constant, D. Gravitational...
- A body of mass 1 kg moves along a straight line with a velocity v=2x². The work done by the body during displacement from x=0 to...
- A cylinder with adiabatic walls is closed at both ends and is divided into two compartments by a frictionless adiabatic piston....
- For an electromagnetic wave propagating through vacuum, k⃗, E⃗ and ω represent propagation vector, electric field and angular...
- Two identical bodies A and B of equal masses have initial velocities v⃗₁=4î m/s and v⃗₂=4ĵ m/s respectively. The body A has...
- A cylindrical vessel of 40 cm radius is completely filled with water and its capacity is 528 dm³ (dm : decimeter). The vessel is...
- If 2 mole of an ideal monoatomic gas at temperature T, is mixed with 6 mole of another ideal monoatomic gas at temperature 2T...
- A spring stretches by 2 mm when it is loaded with a mass of 200 g. From equilibrium position the mass is further pulled down by 2...
- The electric potential as a function of x, y is given by V=5(x²−y²) V. The electric field at a point (2,3) m is _______ V/m.
- A current of 30 A each flows in opposite directions in two conducting wires, placed parallel to each other at a distance of 8 cm....
- A square loop of side 2 cm is placed in a time varying magnetic field with magnitude as B=0.4 sin(300t) Tesla. The normal to the...
- A sphere of capacitance 100 pF is charged to a potential of 100 V. Another identical uncharged metal sphere is brought in contact...
- The energy released if hydrogen atoms are combined to form ⁴₂He is _______ MeV. (Take binding energies per nucleon of ²₁H and...
- Angle of minimum deviation is equal to the half of the angle of prism in an equilateral prism. The refractive index of the prism...
- A block takes t time to slide down a plane inclined at 45° to the horizontal. If the surface is made smooth (frictionless), the...
- The de Broglie wavelength for an electron accelerated through the potential difference of V₁ volt is λ₁. When the potential...
- A moving coil of galvanometer when shunted with 2 Ω resistance gives a full scale deflection for a current of 500 mA. When a...
- Two cells of emfs 1 V and 2 V and internal resistance 2 Ω and 1 Ω, respectively connected in parallel, gave a current of 1 A...
- A concave mirror of focal length 10 cm forms an image which is double the size of object when the object is placed at two...