Mechanical Properties of Solids

JEE Main Physics · 11 questions

All questions, latest first

• Figure represents the extension ( Δ l ) of a wire of length 1 meter, suspended from the ceiling of the room at one end with a…20266 April, Shift 2 · Q33
• A lift of mass 1600 kg is supported by thick iron wire. If the maximum stress which the wire can withstand is 4 × 10^8 N / m^2…20266 April, Shift 1 · Q30
• The two wires A and B of equal cross-section but of different materials are joined together. The ratio of Young's modulus of wire…20266 April, Shift 1 · Q34
• A copper wire of length 3 m is stretched by 3 mm by applying an external force. The volume of the wire is 600 × 10^-6 m^3. The…20265 April, Shift 2 · Q46
• The Young's modulus of steel wire of radius r and length L is Y. If the radius r and length L of the wire are doubled then the…20265 April, Shift 1 · Q31
• Two wires as shown in the figure below, made of steel and have breaking stress of 12 × 10^8 N / m^2. Area of cross-section of…20265 April, Shift 1 · Q43
• A cube has side length 5 cm and modulus of rigidity 10^5 N / m^2. The displacement produced by a force of 10 N in the upper face…20265 April, Shift 1 · Q46
• A metal string A is suspended from a rigid support and its free end is attached to a block of mass M. Second block having mass 2…20264 April, Shift 2 · Q31
• The increase in the pressure required to decrease the volume ( Δ V ) of water is 6.3 × 10^7 N / m^2. The percentage decrease in…20264 April, Shift 1 · Q27
• A string A of length 0.314 m and Young's modulus 2 × 10^10 N / m^2 is connected to another string B of length and Young's modulus…20264 April, Shift 1 · Q34
• A uniform wire of length l of weight w is suspended from the roof with a weight of W at the other end. The stress in the wire at…20262 April, Shift 1 · Q49