Physics question and answers for April 06, 2024
- Q A wire suspended vertically from one of its ends stretched by attaching weight of 200 N to the lower end The weight stretches the wire by 1 mm Then the...
- Q A wire fixed at the upper end stretches by length by applying a force F The work done i 200 stretching is 1 F 2 3 2F 2 Fl 4...
- Q Two blocks of masses m and M are connected by means of a metal wire of cross sectional area A passing over a frictionless fixed pulley as shown in the...
- Q 4 25 An oil drop of 12 excess electrons is held stationary under a constan electric field of 2 55 x 104 NC in Millikan s oil drop experiment The...
- Q The breaking stress for a wire of unit cross section is called as 1 Yield point 3 Elastic fatigue 2 Tensile strength 4 Young s modulus
- Q The velocity of water in a river is 18 km h near the surface If the river is 5 m deep find the shearing stress between the horizontal layers of...
- Q 1 A bead released from one end of a frictionless rigid wire frame fixed in a vertical plane slides periodically on the frame Size of the bead is negligible as...
- Q 3 Two wires of copper having the length in the ratio 4 1 and their radii ratio as 1 4 are stretched by th same force The ratio of longitudinal...
- Q Two immiscible liquids with densities p and p are taken in a U tube as shown Then A PA PB B P Pc P h P2 h h D P2...
- Q A square frame of ABCD consisting of five steel bars of cross section area 400 mm and joined by pivot is subjected to action of two forces P 40 kN...
- Q 4 Compressibility of an oil is 20 x 10 6 atm A hydraulic press contains 0 5 m of this oil What will be the decrease in volume of oil...
- Q Does a bar magnet exert a torque on itself due to its own field Does one element of a current carrying wire exert a force on another element of the...
- Q 5 Consider an incompressible and non viscous liquid in a container Density of liquid is p and acceleration due to gravity is g and h represents the vertical separation between...
- Q Why two or more mercury drops for single drop when brought in contact each other
- Q Matching Type Questions 14 A rectangular box is completely filled with a liquid of density p as shown in the fig The box is moved horizontally with a constant acceleration...
- Q A cube of specific gravity 0 6 and side L floats in a rectangular tank containing water with square base of side 3L Assume the cube remains vertical a Find...
- Q 12 An ideal gas has adiabatic exponenty It contracts according to the law PV a where a is a positive constant For this process the Bulk modulus of the gas...
- Q A piece of metal weights 46g in air When it is immersed in a liquid of specific gravity 1 24 at 27 C it weighs 30 g When the temperature...
- Q 3 Which of the following is the most suitable as shock absorbed 1 3 stress stress strain strain 2 4 stress stress strain strain
- Q 3 0 and 0 5 8 A uniform pressure P is exerted on all sides of a solid cub34 It is heated through At in order to bring its volume...
- Q The length of an elastic string is x meter when the tension is 8N and y meter when the tension is 10N The length in metres when the tension is...
- Q A uniform bar of square cross section is lying along a frictionless horizontal surface A horizontal force is applied to pull it from one of its ends then A The...
- Q The property of matter by virtue of which it regains its original shape and size when th deforming forces have been removed is called a Plasticity c Rigid Body b...
- Q he load versus elongation graph for four wires is shown The thinnest wire is Load P R S Elongation
- Q 47 A Copper wire of length Lou Young s modulus Yea and diameter d is hung from the ceiling An Aluminium wire of length LA Young s modulus YAI and...
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