The radius of a cylindrical wire is measured by screw gauge is 1.25 mm. The length of wire is 25.0 cm and the mass of wire is 12 g. The density of wire is
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
(9.8±1.0)gcm-3
b
(9.8±1.01267)gcm-3
c
(9.8±0.1)gcm-3
d
(9.80±0.01)gcm-3
answer is A.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
Density, ρ= Mass Volume =mπr2l=123.14×1.25×10-12×25.0=9.8gcm-3ρ=mπr2lΔρρ=Δmm+2Δrr+ΔllΔρ=112+2×0.01125+0125.0×9.8=1.0ρ=(9.8±1.0)gcm-1