Two rods A and B of identical dimensions are at temperature `30^(@)C`. If A is heated upto `180^(@)C` and B `T^(@)C`, then new lengths are the same . If the ratio of the coefficients of linear expansion of A and B is 4:3,then the value of T is
An iron sphere of radius 10 cm is at temperature , 10^(@)C . If the sphere is heated upto temperature 110^(@)C , find the change in the volume of the sphere coefficient of linear expansion of iron = 11 xx 10^(-6) .^(@)C^(-1)
When a metal rod is heated through 30^(@)C the thermal strain in the rod is 3.6 xx 10^(-4) .what is the coefficient of linear expansion of the metal ?
Length of wire at room temperature is 4.55 m , when the temperature increases upto 100^(@) C then its length becomes 4.57 m . The coefficient of linear expansion (alpha) of the given wire is
A metal rod measures 50 cm in length at 20^(@)C . When it is heated to 95^(@)C , the length becomes 50.06 cm . What is the coefficient of linear expansion of rod ? What will be the length of the rod at -20^(@)C ?
The coefficient of a^(3)b^(2)c in the expansion of (1+a-b+c)^(9) is
Find the coefficient of a^(3)b^(4)c in the expansion of (1+a-b+c)^(9)
The coefficient of a^(8)b^(6)c^(4) in the expansion of (a+b+c)^(18) is
coefficient of a^(3)b^(2)c in the expansion of (1+a-b+c)^(9)
The variation of length of two metal rods A and B with change in temperature is shown in Fig. the coefficient of linear expansion alpha_A for the metal A and the temperature T will be
