Skip to content
dronacharya.ai
← JEE Main 2022 · 27 Jun · Shift 1
PhysicsSingle correct+4 / -1Question 33 of 90

JEE Main 2022 · 27 Jun · Shift 1, Physics question 33

A silver wire has a mass (0.6±0.006)(0.6\pm0.006) g, radius (0.5±0.005)(0.5\pm0.005) mm and length (4±0.04)(4\pm0.04) cm. The maximum percentage error in the measurement of its density will be :

Choose one option
Answer and worked solution

Official answer: A

Density ρ=mπr2l\rho=\dfrac m{\pi r^2l}: Δρρ=1%+2(1%)+1%=4%\dfrac{\Delta\rho}\rho=1\%+2(1\%)+1\%=4\%.

(A)

Topics:Errors in measurement
← Previous questionNext question →