Skip to content Home Questions Play Progress Daily Challenge Questions › Physics Questions QUESTION Statement I: A spherometer is used to measure the radius of curvature of spherical surfaces like lenses and mirrors. Statement II: A spherometer typically… Open question → QUESTION Which is the conventional commercial billing unit of electrical energy? Open question → QUESTION Statement I: The Hubble constant is used to describe the rate of expansion of the universe. Statement II: Planck’s constant is used to measure… Open question → QUESTION The unit of magnetic intensity in the CGS (centimetre - gram - second) system is _______. Open question → QUESTION Match each instrument in List I with its use in List II. List I (Instrument) | List II (Use) 1. Sextant | a. Measures… Open question → QUESTION The deprecated unit name nit refers to a unit of which photometric quantity? Open question → QUESTION Assertion (A): Gravitational intensity is a vector quantity. Reason (R): Density is defined as mass per unit volume and is a vector quantity. Open question → QUESTION Assertion (A): The stokes is a CGS unit of kinematic viscosity. Reason (R): The joule is an SI unit of energy equal to one… Open question → QUESTION 1 kilowatt is equivalent to: Open question → QUESTION Which of the following is the correct statement? Open question → QUESTION A ____ is one billionth of a metre. Open question → QUESTION Which statements about a light-year are correct? 1. It is a unit of distance. 2. Light itself is a unit of time. 3. It… Open question → QUESTION In 1960, which isotope was used to define the standard measure of length Open question → QUESTION Assertion (A): The internal jaws of a vernier calliper are used to measure the internal diameter of hollow objects like pipes or cylinders. Reason… Open question → QUESTION Which scientist investigated electrostatic forces with a calibrated torsion balance in1785? Open question → QUESTION Evangelista Torricelli is famous for what discovery? Open question → QUESTION Which scientists discovered the empirical relationship in 1911 between the half-life of alpha decay and the energy of emitted alpha particles? Open question → QUESTION Which scientist suggested that the magnet must also exert an equal and opposite force on the current-carrying conductor? Open question → QUESTION For which discovery is Hideki Yukawa, Nobel Prize winner in 1949, best known? Open question → QUESTION As per physicists and their major contributions/discoveries, which of the following pairs is INCORRECT? Open question → QUESTION Which listed physicist is associated with the circulating induced currents also known as Foucault currents? Open question → QUESTION Assertion (A): A compass needle can deflect when current flows in a nearby wire. Reason (R): The current produces a magnetic field that interacts… Open question → QUESTION Statement I: Eric A. Cornell, Wolfgang Ketterle, and Carl E. Wieman were awarded the Nobel Prize in Physics for achieving Bose-Einstein condensation in dilute… Open question → QUESTION Statement I: Michael Faraday discovered electromagnetic induction in 1831. Statement II: A changing magnetic flux linkage induces an emf. Which statements are true? Open question → Home Questions Play Progress 