Home
Class 9
PHYSICS
The following four wires are made of the...

The following four wires are made of the same material which of these will have the largest extension when the same tension is applied

A

length 50 cm and diameter `0.5` mm

B

length 100 cm and diameter 1 mm

C

length 200 cm and diameter 2 mm

D

length 300 cm and diameter 3 mm

Text Solution

Verified by Experts

The correct Answer is:
A
`Y=(FL)/(pir^(2)l)`
`:.l=(FL)/(pir^(2)Y)rArrlprop(L)/(r^(2))`
`:.(L)/(r^(2))` is greatest for option (a).
Promotional Banner

Topper's Solved these Questions

  • ELASTICITY

    CENGAGE PHYSICS|Exercise CHALLENGING EXERCISE|10 Videos

  • DESCRIPTION OF MOTION

    CENGAGE PHYSICS|Exercise OLYMPIAD AND NTSE LEVEL EXERCISE|10 Videos

  • FRICTION

    CENGAGE PHYSICS|Exercise OLYMPIAD AND NTSE LEVEL EXERCISES (Read the given statements and select the correct option.)|1 Videos

Similar Questions

Explore conceptually related problems

The following four wires are made of same material. Which of these will have the largest extension when the same tension is applied?

The following four wires of length L and radius r are made of the same material. Which of these will have the largest extension, when the same tension is applied?

The following four wires of length L and radius 'r' are made of the same material which of these will have largest extension ?

The length L and diameter d of four wires of the same material are given below. Which of these will elongate the most, when the same tension is applied ?

Which of the following wires, all made of the same material, has the highest resistance?

Let L be the length and d be the diameter of cross section of a wire. Wires of the same material with different L and d are subjected to the same tension along the length of the wire. In which of the following cases, the extension of wire will be the maximum?

The length of a wire is increased by 1 mm on the application, of a given load. In a wire of the same material, but of length and radius twice that of the first, on application of the same load, extension is