Test Academy | A brass rod and lead rod each 80 cm long at 0°C are clamped together at one end with their free ends coinciding. The separation of free ends of the rods if the system is placed in a steam bath is (αbᵣₐₛₛ =18 x 10⁻⁶ /°C and αₗₑₐd = 28 x 10⁻⁶ /°C ) 0.2 mm, 0.8 mm, 1.4 mm, 1.6 mm

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A brass rod and lead rod each 80 cm long at 0°C are clamped together at one end with their free ends coinciding. The separation of free ends of the rods if the system is placed in a steam bath is (αbᵣₐₛₛ =18 x 10⁻⁶ /°C and αₗₑₐd = 28 x 10⁻⁶ /°C )

Options :

0.2 mm
0.8 mm
1.4 mm
1.6 mm

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