The most accurate reading of the length of a $6.28 \,cm$ long fibre is ............... $cm$
Easy
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1$E,\,m,\,l$ and $G$ denote energy, mass, angular momentum and gravitational constant respectively, then the dimension of $\frac{{E{l^2}}}{{{m^5}{G^2}}}$ areView Solution
- 2Durring Searle's experiment, zero of the Vernier scale lies between $3.20 \times 10^{-2} m$ and $3.25 \times 10^{-2} m$ of the main scale. The $20^{\text {th }}$ division of the Vernier scale exactly coincides with one of the main scale divisions. When an additional load of $2 \ kg$ is applied to the wire, the zero of the Vernier scale still lies between $3.20 \times 10^{-2} m$ and $3.25 \times 10^{-2} m$ of the main scale but now the $45^{\text {th }}$ division of Vernier scale coincides with one of the main scale divisions. The length of the thin metallic wire is $2 m$. and its cross-sectional area is $8 \times 10^{-7} m ^2$. The least count of the Vernier scale is $1.0 \times 10^{-5} m$. The maximum percentage error in the Young's modulus of the wire isView Solution
- 3$1$ $joule$ of energy is to be converted into new system of units in which length is measured in $10\, m$, mass in $10\, kg$ and time in $1$ $minute$ then numerical value of $1\, J$ in the new system isView Solution
- 4If the average life of a person is taken as $100 \,s$, the age of the universe on this scale is of the order ...... $s$View Solution
- 5Match List-I with List-II and select the correct answer by using the codes given below the listsView Solution
List - I List - II $(A)$ Distance between earth and stars $(1)$ Microns $(B)$ Inter-atomic distance in a solid $(2)$ Angstroms $(C)$ Size of the nucleus $(3)$ Light years $(D)$ Wavelength of infrared laser $(4)$ Fermi $(5)$ Kilometres - 6If velocity $[V],$ time $[T]$ and force $[F]$ are chosen as the base quantities, the dimensions of the mass will beView Solution
- 7View SolutionWhich of the following pair of quantities do not have the same dimensions
- 8View SolutionDimensional Formula of Universal Gas Constant is
- 9View SolutionThe unit of power is
- 10The radius of a disc is $1.2\; cm$. Its area according to the concept of significant figures will be given byView Solution