A round steel bar of overall length 40 cm consists of two equal portions of 29 cm each having diameters of 10 cm and 8 cm respectively. If the rod is subjected to a tensile load of 10 tones, the elongation will be given by :( = 2 x 10 kg/cm)

A round steel bar of overall length 40 cm consists of two equal portio

1.	A round steel bar of overall length 40 cm consists of two equal portions of 29 cm each having diameters of 10 cm and 8 cm respectively. If the rod is subjected to a tensile load of 10 tones, the elongation will be given by :( = 2 x 10 kg/cm)
A.	1/10π (1/25 + 1/16) cm
B.	2/10π (1/25 + 1/16) cm
C.	3/10 π (1/25 + 1/16) cm
D.	4/10 π (1/25 + 1/16) cm
Answer» B. 2/10π (1/25 + 1/16) cm

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A round steel bar of overall length 40 cm consists of two equal portions of 29 cm each having diameters of 10 cm and 8 cm respectively. If the rod is subjected to a tensile load of 10 tones, the elongation will be given by :( = 2 x 10 kg/cm)

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