List of top Physics Questions on mechanical properties of solids asked in BITSAT

A light string passing over a smooth light pulley connects two blocks of masses \( m_1 \) and \( m_2 \) (where \( m_2>m_1 \)). If the acceleration of the system is \( \frac{g}{\sqrt{2}} \), then the ratio of the masses \( \frac{m_1}{m_2} \) is:
A steel wire of length L at 40^∘C is suspended from the ceiling and a mass m is hung from its free end. The wire is cooled from 40^∘C to 30^∘C to regain its original length L. The coefficient of linear expansion of steel is 10⁻5/^∘C. Young’s modulus of steel is 10¹1N/m² and radius of the wire is 1mm. Assume diameter of the wire. Then the value of m in kg is nearly
The approximate depth of an ocean is 2700 m. The compressibility of water is \( 45.4 \times 10^{-11} \, \text{Pa}^{-1} \) and the density of water is \( 10^3 \, \text{kg m}^{-3} \). What fractional compression of water will be obtained at the bottom of the ocean?