Home
Class 11
PHYSICS
A 30.0 cm long metal rod expands by 0.06...

A `30.0 cm` long metal rod expands by `0.0650 cm` when its temperature is raised from `0^(@)C` to `100^(@)C`. A second rod of different metal and of the same length expands by `0.0350 cm` for the same rise in temperature. A third composite rod, also `30.0 cm` long, is made up of pieces of each of the above metals placed end to end and expands by `0.0580 cm` when temperature is increased from `0^(@)C` to `100^(@)C`. the length of the longer portion of the composite bar in cm at `0^(@)C` is

Promotional Banner

Similar Questions

Explore conceptually related problems

A metal rod A of 50 cm length expands by 0.10 cm when its temperature is raised from 0^(@)C" to "100^(@)C . Another rod B of a different metal of length 60 cm expands by 0.06 cm for the same rise in temperature. A third rod C of 50 cm length is made up of pieces of rods A and B placed end to end expands by 0.03 cm on heating from 0^(@)C" to "50^(@)C . Find the length of each portion of composite rod C.

A metal rod A of 25 cm length expands by 0.050 cm when its temprature is raised frmo 0^@C to 100^@C . Another rod B of a different metal of length 40 cm expands by 0.040 cm for the same rise in temperature. A third rod C of 50 cm length is made up of pieces of rods A and B placed end to end expands by 0.03 cm on heating from 0^@C to 50^@C . Find the lengths of each portion of the composite rod C.

A metal rod (A) of 25 cm length expands by 0.050 cm when its temperature is raised from 0^@ C to 100^@ C . Another rod (B) of a different metal of length 40 cm expamds by 0.040 cm for the same rise in temperature. A third rod ( C) of 50 cm length is made up of pieces of rods (A) and (B) placed end to end expands by 0.03 cm on heating from 0^@ C . Find the lengths of each portion of the composite rod.

A metal rod (A) of 25 cm length expands by 0.050 cm when its temperature is raised from 0^@ C to 100^@ C . Another rod (B) of a different metal of length 40 cm expamds by 0.040 cm for the same rise in temperature. A third rod ( C) of 50 cm length is made up of pieces of rods (A) and (B) placed end to end expands by 0.03 cm on heating from 0^@ C . Find the lengths of each portion of the composite rod.

A rod of length 20 cm made of metal A expands by 0.075 when its temperature is raised from 0^(@) C to 100^(@)C . Another rod of a different metal B having the same length expands by 0.045 cm for the same change in temperature. A third rod of the same length is composed of two parts, one of metal A and other of metal B. This rod expands by 0.065 cm for the same change in temperature. The portion made of metal A has the length :