A brass rod 1 metre long is firmly clampled in the middle and one end is stroked by a resined cloth. What is the pitch of the note you will hear ? Density of brass `=9gcm^(-3)` and Young's modulus of brass `=10^(12)"dyne" //cm^(2)`.

A steel and a brass wire .each of length 50 cm and cross sectional area 0.005cm^(2) hang from a ceiling and are 15 cm apart Lower ends of the wires are attached to a light horizontal bar .A suitable downward load is applied to the bar so that each of the wires extends in length by 0.1 cm . At what distance from the steel wire the load must be applied ? [ Young 's modulus of steel is 2xx10^(12) dynes /cm^(2) and that of brass is 1xx10^(12)"dynes"//cm^(2)]

A brass wire 1.8 m long at 27 ^(@) C is held taut with little tension between two rigid supports. If the wire is cooled to a temperature of - 39 ^(@) C . what is the tension developed in the wire, if its diameter is 2.0 mm ? Co-efficient of tear expansion of brass = 2.0 xx 10^(-5) K^(-1) , Young's modulus of brass = 0.91 xx 10^(11) Pa.

A brass wire 1.8 m long at 27 ^(@) C is held taut with little tension between two rigid supports. If the wire is cooled to a temperature of - 39 ^(@) C . what is the tension developed in the wire, if its diameter is 2.0 mm ? Co-efficient of tear expansion of brass = 2.0 xx 10^(-5) K^(-1) , Young's modulus of brass = 0.91 xx 10^(11) Pa.

A brass wire 1.8 m long at 27 ^(@) C is held taut with little tension between two rigid supports. If the wire is cooled to a temperature of - 39 ^(@) C . what is the tension developed in the wire, if its diameter is 2.0 mm ? Co-efficient of tear expansion of brass = 2.0 xx 10^(-5) K^(-1) , Young's modulus of brass = 0.91 xx 10^(11) Pa.

A brass wire 1.8 m long at 27^(@)C is held taut with little tension between two rigid supports. If the wire cooled to a temperature of -39^(@)C , what is the tension developed in the wire, if its diameter is 2.0 mm ? Coefficient of linear expansion of brass = 2.0 xx 10^(-5)//^(@)C , Young's modulus of brass = 0.91 xx 10^(11) Pa .