An iron scale is calibrated at 0^(@)C. The length of the zinc rod according to the scale is from 100 to...

The pH scale extends from

A long horizontal glass capillary tube open at both ends contains a mercury thread 1m long at 0^0 C . A scale is etched on the glass tube. This scale is correct at 0^0 C . Find the length of mercury thread as shown by this scale at 100^0 C . Also find original length of thread at 0^0 C . ( gamma_mercury = 18.2 x 10^-5 K^-1, alpha_glass = 9 x 10^-6 K ^-1)

An iron scale is correct at 0^(@)C an at this temperature, a zinc rod measures 1m on this scale. What will be the length of the zinc rod as measured by the iron scale when both the are at 100^(@)C ? (Linear expansivity of zinc =126xx10^(-6)K^(-1) and linear expansivity of iron =12x10^(-6)K^(-1) )

A brass scale is graduated at 10^@C . What is the true length of a zinc rod which measures 60.00 cm on this scale at 30^@C ? Coefficient of linear expansion of brass =18xx10^-6K^-1 .

The length of a rod is measured as 31.52 cm . Graduations on the scale are up to

Consider a metal scale of length 30cm and an object. The scale is calibrated for temp 20^(@)C . (a) What is the actual length of division which is shown as 1cm by scale at 40^(@)C . Given alpha_(s) = 2 xx 10^(-5)//"^(@)C . (b) What will be the reading of scale at 40^(@)C if the actual length of objects is 10cm . (c ) What will be the actual length of object at 40^(@)C if is measured length is 10cm . (d) What is % error in measurement for part (b) and (c). (e) If the linear expansion coefficient of object is alpha_(0) = 4 xx 10^(-5) and neglecting the expansion of scale, then answers of (b) and (c) parts. (f) If alpha_(0) = 4 xx 10^(-5) and alpha_(s) =2xx 10^(-5) then find answers of (b) and (c) part.

A brass scale gives correct length at 0^(@)C . If the temperature by 25^(@)C and the length read by the scale is 10 cm . Then the actual length will be