Young’s moduli of two wires A and B are in the ratio 7 : 4. Wire A i

1.	Young’s moduli of two wires A and B are in the ratio 7 : 4. Wire A is 2 m long and has radius R. Wire A is 2 m long and has radius R. Wire B is 1.5 m long and has radius 2 mm. If the two wires stretch by the same length for a given load, then the value of R is close to:(A) 1.3 mm (B) 1.5 mm(C) 1.7 mm (D) 1.9 mm
Answer» ${\red{\huge{\underline{\mathbb{Answer:-}}}}}$ given length of wire A = 2 m radius of wire A = R and length of wire B = 1.5 m radius = 2mm YOUNG modulus of A : young modulus of B = 7:4 STEP by step explanation see the attachment correct OPTION is c) 1.7 MM

Young’s moduli of two wires A and B are in the ratio 7 : 4. Wire A is 2 m long and has radius R. Wire A is 2 m long and has radius R. Wire B is 1.5 m long and has radius 2 mm. If the two wires stretch by the same length for a given load, then the value of R is close to:(A) 1.3 mm (B) 1.5 mm(C) 1.7 mm (D) 1.9 mm

Answer»

${\red{\huge{\underline{\mathbb{Answer:-}}}}}$

given

length of wire A = 2 m

radius of wire A = R

and length of wire B = 1.5 m

radius = 2mm

YOUNG modulus of A : young modulus of B = 7:4

STEP by step explanation see the attachment

correct OPTION is c) 1.7 MM

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correct OPTION is c) 1.7 MM

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