Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
BITSAT 2010
Exam
BITSAT
Year
2010
Subject
Physics
Chapter
Mechanical Properties of Solids

BITSAT 2010 · Physics · Mechanical Properties of Solids

The upper end of a wire of diameter 12 mm and length 1 m is clamped...

The upper end of a wire of diameter 12mm12 \mathrm{ mm} and length 1m1 \mathrm{ m} is clamped and its other end is twisted through an angle of 30∘.30^{{}^{\circ}}. The angle of shear is

Options

  1. A18∘18^{{}^{\circ}}
  2. B0.18∘0.18^{{}^{\circ}}
  3. C36∘36^{{}^{\circ}}
  4. D0.36∘0.36^{{}^{\circ}}

Correct answer

B. 0.18∘0.18^{{}^{\circ}}

Step-by-step solution

rθ=ℓϕ⇒ϕ=rθℓ=6mm×30∘1m=0.18∘r \theta=\ell \phi \Rightarrow \phi=\frac{r \theta}{\ell}=\frac{6 \mathrm{ mm} \times 30^{{}^{\circ}}}{1 \mathrm{ m}}=0.18^{{}^{\circ}}
Practice Mechanical Properties of Solids on Quantrex Academy →

More from Mechanical Properties of Solids

Two wires of the same material (Young's modulus =Y ) and same length L but radii R and 2… BITSAT 2024With rise in temperature, the Young's modulus of elasticity: BITSAT 2024Young's modules of materials of a wire of Length ' L ' and cross-sectional area A is Y.… BITSAT 2024Young's moduli of the material of wires A and B are in the ratio of 1: 4 , while its area… BITSAT 2023A 100 m long wire having cross-sectional area 6.25 × 10^ -4 m^2 and Young's modulus is… BITSAT 2023There are two wire of same material and same length while the diameter of second wire is… BITSAT 2020A steel wire of cross-sectional area 4 cm ^ 2 has elastic limit of 2. 2 × 10 ^ 8 Nm^ - 2… BITSAT 2019A rubber cord has a cross-sectional area 10 ^ - 6 m^ 2 and total unstretched length 0. 1m… BITSAT 2019 Full Mechanical Properties of Solids list All BITSAT PYQs