Questions tagged 'Young’s Modulus'

• Which one of the following substances possesses the highest elasticity
  Category: Mechanical Properties of Solids | Tags: Young’s Modulus, Breaking Stress
• Which one of the following quantities does not have the unit of force per unit area
  Category: Mechanical Properties of Solids | Tags: Young’s Modulus, Breaking Stress
• A copper wire and a steel wire of the same diameter and length are connected end to end and a force is applied, which stretches their combined length by 1 cm. The two wires will have
  Category: Mechanical Properties of Solids | Tags: Young’s Modulus, Breaking Stress
• A steel ring of radius r and cross-section area $A$ is fitted on to a wooden disc of radius $R(R>r)$. If Young's modulus be $E$, then the force with which the steel ring is expanded is
  Category: Mechanical Properties of Solids | Tags: Young’s Modulus, Breaking Stress
• A wire extends by 1 mm when a force is applied. Double the force is applied to another wire of same material and length but half the radius of cross-section. The elongation of the wire in mm will be
  Category: Mechanical Properties of Solids | Tags: Young’s Modulus, Breaking Stress
• Two wires of the same material have lengths in the ratio $1 : 2$ and their radii are in the ratio $1:\sqrt{2}$. If they are stretched by applying equal forces, the increase in their lengths will be in the ratio
  Category: Mechanical Properties of Solids | Tags: Young’s Modulus, Breaking Stress
• When a weight of 10 kg is suspended from a copper wire of length 3 metres and diameter 0.4 mm, its length increases by 2.4 cm. If the diameter of the wire is doubled, then the extension in its length will be
  Category: Mechanical Properties of Solids | Tags: Young’s Modulus, Breaking Stress
• A force of ${{10}^{3}}$ newton stretches the length of a hanging wire by 1 millimetre. The force required to stretch a wire of same material and length but having four times the diameter by 1 millimetre is
  Category: Mechanical Properties of Solids | Tags: Young’s Modulus, Breaking Stress
• Two wires $A$ and $B$ of the same material have radii in the ratio $2 : 1$ and lengths in the ratio $4 : 1$. The ratio of the normal forces required to produce the same change in the lengths of these two wires is
  Category: Mechanical Properties of Solids | Tags: Young’s Modulus, Breaking Stress
• Density of rubber is $d$. A thick rubber cord of length $L$ and cross-section area $A$ undergoes elongation under its own weight on suspending it. This elongation is proportional to
  Category: Mechanical Properties of Solids | Tags: Young’s Modulus, Breaking Stress

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