1

WB JEE 2019

MCQ (Single Correct Answer)

+1

-0.25

A compressive force is applied to a uniform rod of rectangular cross-section so that its length decreases by 1%. If the Poisson's ratio for the material of the rod be 0.2, which of the following statements is correct?

"The volume approximately ................."

"The volume approximately ................."

2

WB JEE 2019

MCQ (Single Correct Answer)

+1

-0.25

A small spherical body of radius r and density $$\rho $$ moves with the terminal velocity v in a fluid of coefficient of viscosity $$\eta $$ and density $$\sigma$$. What will be the net force on the body?

3

WB JEE 2018

MCQ (Single Correct Answer)

+1

-0.25

The stress along the length of a rod (with rectangular cross-section) is 1% of the Young's modulus of its material. What is the approximate percentage of change of its volume? (Poisson's ratio of the material of the rod is 0.3).

4

WB JEE 2018

MCQ (Single Correct Answer)

+1

-0.25

What will be the approximate terminal velocity of a rain drop of diameter $${1.8 \times {{10}^{ - 3}}}$$ m, when density of rain water $$ \approx $$ $${1.8 \times {{10}^{ - 5}}}$$ N-sm

^{$$-$$2}(Neglect buoyancy of air)Questions Asked from Properties of Matter (MCQ (Single Correct Answer))

Number in Brackets after Paper Indicates No. of Questions

WB JEE Subjects

Physics

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