Skip to content Home Questions Play Progress Daily Challenge Questions › Physics › Units and Measurements Questions QUESTION Which instrument is used to measure blood pressure in humans? Open question → QUESTION Which of the following instruments is used to measure temperature? Open question → QUESTION Which listed general-purpose instrument measures the density or relative density of liquids? Open question → QUESTION Which physical quantity equals total distance travelled divided by elapsed time? Open question → QUESTION How many joules (J) are equal to 1 kilojoule (kJ)? Open question → QUESTION Match each atmospheric quantity with its measurement instrument. Quantity | Instrument 1. Atmospheric pressure | A. Hygrometer 2. Wind speed | B. Barometer 3.… Open question → QUESTION Which physical quantity is measured by a barometer? Open question → QUESTION How do the physical quantities distance and displacement fundamentally differ? Open question → QUESTION For a thin lens, optical power P is defined as1/f when focal length f is in metres. What is the conventional unit of P? Open question → QUESTION Statement I: One calorie of heat energy is approximately equal to 4.2 joules of mechanical energy. Statement II: The calorie is a unit of… Open question → QUESTION ‘mho’ is the unit of ______ of a substance. Open question → QUESTION Which SI prefix represents10⁻¹⁵? Open question → QUESTION Statement I: Tera is larger than Giga in the metric system of units. Statement II: Hecto and Deca are larger than Tera. Open question → QUESTION Which of the following is the physical quantity for the expression arc/radius? Open question → QUESTION For an ideal gas, kB = PV/(NT), where N is the number of molecules. Which option gives the approximate value of the Boltzmann constant… Open question → 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 → Home Questions Play Progress 