NEET Physics units and measurements Test-4 July 16, 2017admin0 Comments CategoriesNEET Foundation Class-VIII NEET Physics units and measurements Test-4 1. SI unit and CGS unit of certain quantity vary by 10^{3} times. That quantity is 1 ) Boltzmann constant Gravitational constant Planck’s constant Angular momentum 2. The pair of physical quantities having the same dimensional formula are 1 ) Momentum, impulse Momentum, energy Energy, pressure Force, power 3. A pair of physical quantities having the same dimensional formula is Force and work Work and energy Force and torque Work and power 4. The pair of physical quantities having the same dimensional formula Angular momentum and torque Torque and entropy Power and angular momentum None 5. The SI unit of magnetic flux is Wb/m^{2 } Am^{2} Oersted Weber 6. Planck’s constant has the same dimensions as Energy Power Linear momentum Angular momentum 7. How many ergs are there in one kilowatt – hour ? 3.6 x 10^{ 6 } 3.6 x 10^{10 } 3.6 x 10^{13 } 3.6 x 10^{11} 8. The unit of angular momentum in CGS system Js erg s erg s ^{-1 } cal s^{-1} 9. The fundamental unit which has the same power in the dimensional formula of surface tension and viscosity is mass length time none 10. The dimensions of Thermal resistance is M^{-1}L^{-2}T^{3}K^{1 } M^{0}L^{0}T^{-2} MLT^{4} MLT^{-1} 11. The dimensional formula of velocity gradient is M^{0}L^{0}T^{-1} MLT^{-1} ML^{0}T^{-1 } M^{0}LT^{-2} 12. Temperature can be expressed as derived quantity in terms of any of the following Length and mass Mass and time Length, mass and time In terms of none of these 13. The dimensional formula of coefficient of kinematic viscosity is M^{0}L^{-1}T^{-1 } M^{0}L^{2}T^{-1} ML^{2}T^{-1 } ML^{-1}T^{-1} 14. The fundamental physical quantities that have same dimensions in the dimensional formulae of torque and angular momentum are mass, time time, length mass, length time, mole 15. The dimensional formula for latent heat is MLT^{-2} ML^{2}T^{-2} M^{0}L^{2}T^{-2} MLT^{-1} 16. ML^{-1}T^{-2} represents Stress Young’s modulus Pressure All the above 17. Dimensional formula for angular momentum is ML^{2}T^{-1} ML^{3}T^{-1} MLT^{-1} ML^{3}T^{-2} 18. The physical quantity that has no dimensions is Angular velocity Linear momentum Angular momentum Strain 19. The energy density and pressure have Same dimensions Different dimensions No dimensions None 20. The dimensional formula ML^{2}T^{-2} represents Moment of a force Force Acceleration Momentum 21. The pair of physical quantities not having the same dimensional formula is Acceleration, gravitational field strength Torque, angular momentum Pressure, modulus of elasticity All the above 22. The dimensional formula for Torque is M^{2}LT^{-2 } ML^{2}T^{-2 } M^{-1}L^{2}T^{-2} MLT^{-2} 23. The dimensional formula for angular velocity is M^{-1}LT^{-2} M^{0}L^{-1}T^{0} M^{-1}L^{-1}T^{0} M^{0}L^{0}T^{-1} 24. Solar constant and Stefan’s constant have same dimensions in Mass Length Time All the above 25. The physical quantities not having same dimensions are torque and work momentum and Planck’s constant stress and Young’s modulus speed and (μ_{0} ε_{0}) ^{-1/2} Loading … Related posts: NEET Physics units and measurements Test-1 NEET Physics units and measurements Test-2 NEET Physics units and measurements Test-3 NEET Physics units and measurements Test-5 NEET Physics units and measurements Test-8 Powered by YARPP.