Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A solid sphere of radius R made of a material of bulk modulus K is surrounded by a liquid in cylindrical container. A massless piston of area A floats on the surface of the liquid. When a mass M is placed on the piston to compress the liquid, the fractional change in the radius of the sphere, is
10
Oct
A solid sphere of radius R made of a material of bulk modulus K is surrounded by a liquid in cylindrical container. A massless piston of area A floats on the surface of the liquid. When a mass M is placed on the piston to compress the liquid, the fractional change in the radius of [...]
The edges of an aluminum cube are 10 cm long. One face of the cube is firmly fixed to a vertical wall. A mass of 100kg is then attached to the opposite face of the cube. Shear modulus of aluminum is 25 × 10^9 Pa, the vertical deflection in the face to which mass is attached is
10
Oct
The edges of an aluminum cube are 10 cm long. One face of the cube is firmly fixed to a vertical wall. A mass of 100kg is then attached to the opposite face of the cube. Shear modulus of aluminum is 25 × 10^9 Pa, the vertical deflection in the face to which mass is [...]
A steel wire of length 4.7 m and cross-sectional area 3 × 10^−6 m^2 stretches by the same amount as a copper wire of length 3.5 m and cross-sectional area of 4 × 10^−6 m^2 under a given load. The ratio of Young’s modulus of steel to that of copper is
10
Oct
A steel wire of length 4.7 m and cross-sectional area 3 × 10^−6 m^2 stretches by the same amount as a copper wire of length 3.5 m and cross-sectional area of 4 × 10^−6 m^2 under a given load. The ratio of Young’s modulus of steel to that of copper is A thick rope of [...]
The elastic limit of an elevator cable is 2 × 10^9 N/m^2. The maximum upward acceleration that an elevator of amss 2×103kg can have been supported by a cable would not exceed half of the elastic limit would be
10
Oct
The elastic limit of an elevator cable is 2 × 10^9 N/m^2. The maximum upward acceleration that an elevator of amss 2×103kg can have been supported by a cable would not exceed half of the elastic limit would be A thick rope of density ρ and length L is hung from a rigid support. The [...]
A 5 kg rod of square cross section 5 cm on a side and 1 m long is pulled along a smooth horizontal surface by a force applied at one end. The rod has a constant acceleration of 2 m/s^2. Determine the elongation in the rod. (Young’s modulus of the material of the rod is 5 × 10^3 N/m^9).
10
Oct
A 5 kg rod of square cross section 5 cm on a side and 1 m long is pulled along a smooth horizontal surface by a force applied at one end. The rod has a constant acceleration of 2 m/s^2. Determine the elongation in the rod. (Young’s modulus of the material of the rod is [...]
The length of a steel cylinder is kept constant by applying pressure at its two ends. When the temperature of rod is increased by 100 ∘ C from its initial temperature, the increase in pressure to be applied at its ends is (Y sted = 2 ×10^ 11 N/m ^ 2 , α steel 11 × 10 ^ −6 % C ,1 atm = 10 ^5 N/m ^2 )
10
Oct
The length of a steel cylinder is kept constant by applying pressure at its two ends. When the temperature of rod is increased by 100 ∘ C from its initial temperature, the increase in pressure to be applied at its ends is (Y sted = 2 ×10^ 11 N/m ^ 2 , α steel 11 [...]
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1 atm = 10 ^5 N/m ^2 ) ,
the increase in pressure to be applied at its ends is (Y sted = 2 ×10^ 11 N/m ^ 2 ,
The length of a steel cylinder is kept constant by applying pressure at its two ends. When the temperature of rod is increased by 100 ∘ C from its initial temperature ,
α steel 11 × 10 ^ −6 % C ,
In the figure shown, forces of equal magnitude are applied to the two ends of a uniform rod . consider A as the cross sectional area of the rod. For this situation , mark out the incorrect statements.
10
Oct
In the figure shown, forces of equal magnitude are applied to the two ends of a uniform rod . consider A as the cross sectional area of the rod. For this situation , mark out the incorrect statements. forces of equal magnitude are applied to the two ends of a uniform rod . consider A [...]
A thick rope of density ρ and length L is hung from a rigid support. The increase in length of the rope due to its own weight is (Y is the Young’s modulus)
10
Oct
A thick rope of density ρ and length L is hung from a rigid support. The increase in length of the rope due to its own weight is (Y is the Young’s modulus) A thick rope of density ρ and length L is hung from a rigid support. The increase in length of the rope [...]
A rubber rope of length 8 m is hung from the ceiling of a room. What is the increase in length of rope due to its own weight? (Given: Young’s modulus of elasticity of rubber = 5 × 10^6 N/m and density of rubber = 1.5 × 10^3 kg/m^3. Take g=10 m/s^2 )
10
Oct
A rubber rope of length 8 m is hung from the ceiling of a room. What is the increase in length of rope due to its own weight? (Given: Young’s modulus of elasticity of rubber = 5 × 10^6 N/m and density of rubber = 1.5 × 10^3 kg/m^3. Take g=10 m/s^2 ) A steel [...]
A material has normal density rho and bulk modulus k. the increase in the density of the material when it is subjected to an external pressure P from all sides is
10
Oct
A material has normal density rho and bulk modulus k. the increase in the density of the material when it is subjected to an external pressure P from all sides is A material has normal density rho and bulk modulus k. the increase in the density of the material when it is subjected to an [...]