![]() (a) energy (b) power (c) momentum (d) angular momentumģ4) Acceleration due to gravity measured in Gal is equal to _ģ5) What is called a wave motion in which the particles of the medium vibrate parallel to the direction of propagation of wave?ģ6) The ratio of the dimension of Planck’s constant and that of the moment of inertia is the dimension of (a) pressure, stress (b) velocity, speed (c) force, impulse (d) work, energyĢ9) What is called the frequency of a sound when it is more than 20000 Hz?ģ0) Name the scientist who first proposed the wave theory of light?ģ2) The dimensions of Planck’s constant are same as Online Physics Questions and Answers – Basic Physics Part 2 (26-50)Ģ6) What is the energy equivalent of the mass of an electron?Ģ7) What happens to its frequency, when the tension of a string increases?Ģ8) Which one of the following groups have quantities that do not have the same dimensions? If the maximum error in the measurement of mass and length are 4% and 3% respectively, the maximum error in the measurement of density will The error in kinetic energy obtained by measuring mass and speed will beĢ2) The book Hydrodynamic containing the explanation of Bernoulli’s theorem was published by whom in the year 1738?Ģ4) The density of a cube is measured by measuring its mass and length of its sides. ![]() (a) Refractive index (b) Poissons ratio (c) Relative density (d) Gravitational constantġ8) What is the potential energy of an electron when it is far away from the nucleus?Ģ0) The percentage of errors in the measurement of mass and speed are 2% and 3% respectively. ![]() The unit of force in this system will be equivalent toġ3) How long did it take for Henry Ford to assemble a Model Tear after establishing conveyer belt?ġ4) A petrol engine used to mix petrol and air in a certain ratio for combustion, is called _Īnswer: It determines the altitude of an object in the sky eg: Sun & Stars.ġ6) Which of the following is a dimensional constant? The least count of the instrument should beġ0) The vacant space of a solid’s, electronic energy level is _ġ2) In a particular system, the unit of length, mass and time are chosen to be 10 cm, 10 g and 0.1 s respectively. (a) Energy per unit volume (b) Force per unit area (c) Product of voltage and charge per unit volume (d) Angular momentum.ĥ)Who tried to prove that air is weightless?Ħ) When does the value of energy become zero for an electron?Ĩ) In a vernier caliper N divisions of vernier scale coincides with (N – 1) divisions of main scale (in which length of one division is 1 mm). Physics Questions – Learn Basic Physics Part 1 (1-25)ġ) Who invented the spinning cup anemometer?Ģ) The minimum amount of energy required to remove the most loosely bonded electron is called as?ģ) Who was the first person to design models of flying machine?Ĥ) Of the following quantities, which one has dimension different from the remaining three? 100 Physics Questions and Answers – Basic Physics
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