Question Answers

The wires A and B shown in Fig. are made of the same material and have radii rA and rB, respectively. The block between them has a mass m. When the force F is mg/3, one of the wires breaks. Then one of the wires breaks. Then respectively. The block between them has a mass [...]

A composite rod consists of a steel rod of length 25 cm and area 2 A and a copper rod of length 50cm and area A. The composite rod is subjected to an axial load F. If the Young’s modulii of steel and copper are in the ration 2 : 1, then A body of [...]

A metal wire length L, cross sectional area A and Young’s modulus Y is stretched by a variable force F. F is varying in such a way that F is always slightly greater than the elastic forces or resistance in the wire. When the elongation in the wire is l, up to this instant A [...]

A body of mass M is attached to lower end of a metal wire, whose upper end is fixed. The elongation of wire is l. In this situation , mark out the correct statements . A body of mass M is attached to lower end of a metal wire mark out the correct statements. whose [...]

A rod is made of uniform material and has non-uniform cross section. It is fixed at both the ends as shown and heated at mid-section. Which of the following are not correct? A rod is made of uniform material and has non-uniform cross section. It is fixed at both the ends as shown and heated [...]

which of the following are correct? (1) For a small deformation of a material , the ratio is constant. the ratio is constant. which of the following are correct? (1) For a small deformation of a material October 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

A uniform plank is resting over a smooth horizontal floor and is pulled by applying a horizontal force at its one end. Which of the following statements are correct? A uniform plank is resting over a smooth horizontal floor and is pulled by applying a horizontal force at its one end. Which of the following [...]

which of the following are correct? (1) The shear modulus of a liquid is infinite. which of the following are correct? (1) The shear modulus of a liquid is infinite. October 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Choose the correct statements from the following : (1) steel is more elastic than rubber . Choose the correct statements from the following : (1) steel is more elastic than rubber . October 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

In the previous question, (1) young’s modulus of A is twice that of B (1) young's modulus of A is twice that of B In the previous question October 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,