Q. Amongst the following options, which is a unit of time? Light yearParsecYearNone of these Answer: Year
READ MORE +Q. Amongst the following options, which is a unit of time? Light yearParsecYearNone of these Answer: Year
READ MORE +Q. If the value of work done is 1010 g-cm2 s-2 , then its value in SI units will be 10 kg-m2s-2102 kg-m2s-2104 kg-m2s-2103 kg-m2s-2 Answer: 103 kg-m2s-2
READ MORE +Q. The SI unit of thermal conductivity is J m-1K-1W-m K-1Wm-1K-1Jm K-1 Answer: Wm-1K-1
READ MORE +Q. The density of a material in SI units is 128 kg m-3 . In certain units in which the unit of length is 25 cm and the unit of mass is 50 g, the numerical value of density of the material is 4016640410 Answer: 40
READ MORE +Q. The quantity having the same unit in all system of unit is masstimelengthtemperature Answer: time
READ MORE +Q. The dimensional formula for angular momentum is same as that for: torquePlank’s constantgravitational constantimpulse Answer: Plank’s constant
READ MORE +Q. Which of the following physical quantity is dimensionless? anglespecific gravitystrainall of these Answer: all of these
READ MORE +Q. Which of the following is the unit of molar gas constant? JK-1 mol-1JJK-1J mol-1 Answer: JK-1 mol-1
READ MORE +Q. The weight of a body is 12g. This statement is not correct because: the correct symbol for the unit of weight has not been usedthe correct symbol for gram is gm.the weight should be expressed in kg.None of the above Answer: the correct symbol for the unit of weight has not been used
READ MORE +Q. Give that the displacement of a particle is given by x = A² sin² kt, where t denotes the time. The unit of k is radianmetrehertzsecond Answer: hertz
READ MORE +Q. The volume of a cube in m3 is numerically equal to its surface area in m². The volume of the cube is 64m³1000m³216m³512m³ Answer: 216m³
READ MORE +Q. Which of the following is not the name of a physical quantity? KilogramDensityenergyImpulse Answer: Kilogram
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