Physics questions
20027 published questions with worked solutions.
- A beam of light consisting of wavelengths 650 nm and 550 nm illuminates the Young's double slits with separation of 2 mm such...
- Given below are two statements : Statement I : In a vernier callipers, one vernier scale division is always smaller than one main...
- Assertion (A) : If Young's double slit experiment is performed in an optically denser medium than air, then the consecutive...
- Two spherical bodies of same materials having radii 0.2 m and 0.8 m are placed in same atmosphere. The temperature of the smaller...
- An amount of ice of mass 10⁻³ kg and temperature –10°C is transformed to vapour of temperature 110° by applying heat. The total...
- An electron in the ground state of the hydrogen atom has the orbital radius of 5.3 × 10⁻¹¹ m while that for the electron in third...
- A closed organ and an open organ tube filled by two different gases having same bulk modulus but different densities ρ1 and ρ2...
- The work functions of cesium (Cs) and lithium (Li) metals are 1.9 eV and 2.5 eV, respectively. If we incident a light of...
- If B is magnetic field and μ0 is permeability of free space, then the dimensions of (B/μ0) is
- Statement-I : The equivalent emf of two nonideal batteries connected in parallel is smaller than either of the two emfs....
- A parallel-plate capacitor of capacitance 40μF is connected to a 100 V power supply. Now the intermediate space between the...
- Given is a thin convex lens of glass (refractive index μ) and each side having radius of curvature R. One side is polished for...
- Two soap bubbles of radius 2 cm and 4 cm, respectively, are in contact with each other. The radius of curvature of the common...
- The driver sitting inside a parked car is watching vehicles approaching from behind with the help of his side view mirror, which...
- The position vectors of two 1 kg particles, (A) and (B), are given by r _A = ( _1t^2 i + _2t j + _3t k ) m and r _B = ( _1t i +...
- The maximum percentage error in the measurement of density of a wire is [Given, mass of wire = (0.60 ± 0.003)g radius of wire =...
- Which one of the following is the correct dimensional formula for the capacitance in F ? M, L, T and C stand for unit of mass,...
- An electron projected perpendicular to a uniform magnetic field B moves in a circle. If Bohr's quantization is applicable, then...
- For a diatomic gas, if _1 = ( C_p C_v ) for rigid molecules and _2 = ( C_p C_v ) for another diatomic molecules, but also having...
- A light source of wavelength illuminates a metal surface and electrons are ejected with maximum kinetic energy of 2 eV. If the...