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❓ Question In the SI unit system , density is d 1 = 128 kg/m 3 d_1=128\ \text{kg/m}^3 In another unit system, the unit of length is 25 cm 25\t…

❓ Question The percentage error in acceleration due to gravity g g is 4 % 4\% , and the percentage error in time period T T is 3 % 3\% . For a …

❓ Question The radius of a sphere is measured as r = ( 7.50 ± 0.85 ) cm r=(7.50\pm0.85)\text{ cm} Find the percentage error in the volume of the…

❓ Question Given, R = V I where, V = ( 50 ± 2 ) V V=(50\pm2)\,V and I = ( 20 ± 0.2 ) A I=(20\pm0.2)\,A If the percentage error in resistanc…

❓ Question Two resistors are connected in parallel : R 1 = ( 4 ± 0.8 ) Ω R_1=(4\pm0.8)\Omega R 2 = ( 4 ± 0.4 ) Ω R_2=(4\pm0.4)\Omega Find the equ…

❓ Question Given, Y = M g L 3 4 b d 3 δ Y=\frac{MgL^3}{4bd^3\delta} The measured quantities and their errors are: g = 9.8 m / s 2 , Δ g = 0 g=…

❓ Question Velocity ( V ) (V) , Time ( T ) (T) , and Force ( F ) (F) are taken as fundamental quantities . Find the dimensions of mass ( m ) (m) …

❓ Question The expression given below shows the variation of velocity ( v ) (v) with time ( t ) (t) : v = A t 2 + B t C + t v=At^2+\frac{Bt}{C+t…

❓ Question The pair of physical quantities not having the same dimensions is: Pressure & Young's Modulus Surface Tension & Impul…

❓ Question Match the following: List I List II (A) Young's Modulus ( Y ) (Y) (1) [ M L − 1 T − 1 ] [ML^{-1}T^{-1}] (B) Torque (2) [ M L − 1 T…