Questions
The time period of oscillation of simple pendulum is given by where l is 100 cm and is known to have 0.1 cm accuracy. The time period is 2s. The time (t) of 100 oscillations is measured by a stop watch of least count 0.1s. The maximum percentage error in measurement of g is
detailed solution
Correct option is B
GivenThe time period of simple pendulum T=2πlg⇒g=4π2lT2⇒Δgg=Δll+2ΔTTt=100T=200s⇒Δtt=ΔTT⇒Δgg=Δll+2⋅Δtt⇒Δgg=0.1100+20.11002⇒Δgg×100=0.2%Talk to our academic expert!
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The density of a cube is measured by measuring its mass and length of its sides. If the maximum errors in the measurement of mass and length are 3% and 2% respectively, then the maximum error in the measurement of density is
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