A stress of 9.8 × 10⁶ N/m² is applied to a wire and Young’s modulus is 10^11 N/m² find the percentage increase in length Open Answer »
A load of 25 kg is attached to a of diameter 0.4 cm and a length of 100 cm of the wire is found to elongate to 102 cm. Find Young’s modulus for the material of the wire Open Answer »
The density of aluminium is 2700 kg/m³. Find the relative density of aluminium Given that the density of water = 10³ kg/m³ Open Answer »
An oil of relative density 1.2 and volume 1 litre is poured into water to find the mass of the oil Open Answer »
SAQ : The density of water is 1000 kg/m3. If the relative density of iron is 7.874 calculate the density of iron Open Answer »
LAQ : What are the pressure and total thrust on the bottom of a cylindrical vessel of diameter 0.28 m containing 30.8 litres of mercury? Open Answer »
An actress of mass 50 Kg is wearing sharp-heeled shoes. If the area of one heel is 1 cm2, Calculate the pressure exerted on the ground when she stands on just one heel (g = 10 m/s2) Open Answer »
LAQ : State and explain Hooke’s law. Define longitudinal stress, longitudinal strain and Young’s modulus Open Answer »
