Có 16+ tài liệu thuộc chủ đề "Tạp chí Physics For You"
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The volume of the hollow portion in gold is. The combination of the blocks. Profi t from associating with MTG Brand – the most popular name in educational publishing for JEE (Main &. (b) The amplitude of the resulting SHM is ma. Mass of the frictionless piston is 9 kg. Initial volume of the gas is. 0.0027 m 3 and...
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The x-coordinate of the particle at time t >. where I R = intensity of the resultant wave due to arriving waves of intensities I 1 and I 2. (ii) the angular position of the 1 st maxima after starting.. Find the variation of temperature q of the body B at time t.. Calculate the final temperature of the...
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(Neglect the force due to gravity.) The length of the string is reduced gradually, keeping the angular momentum of the stone about the centre of the circle constant.. Find the lengths of the pipes. vertical displacements of the particle in m from origin(point of projection). Find the maximum distance of the projectile from x-axis.. The speed of the projectile with...
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α β due to particle A where r is the position vector of the particle B relative to A. Here r 0 is the equilibrium position of the particle.. Find the ionization energy E 0 of the particle B.. If the liquid flows inside the tube with a speed of 0.15 m min –1 , the speed with which...
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C is centre of the hemisphere. Find the energy stored in the magnetic field for length 5 m of the cable. (a) the half-life of the sample is 1 h (b) the mean life of the sample is 1. (c) the decay constant of the sample is ln(2) h –1 (d) after a further 4 h, the amount of the...
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Find the maximum extension of the spring.. P W and the density of the particle is ρ = 1.0 g cm –3. 3 10 11 N m kg 2 2 and mass of the Sun kg. Determine the ratio of the energy given out by the gas. The ratio of the surface charge densities of A and B is. The...
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Elasticity : It is that property of the material of a. Area of the body internal external. The ratio of the change in configuration. as the ratio of the stress to the strain.. It depends on the nature of the material of the body. centre of gravity of the displaced fluid. Due to upthrust, the weight of the body decreases.....
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If temperature of the system is increased to T °C,. Determine the number of moles of the gas in the capillary.. The refractive index of the liquid is:. Determine the total volume of blood in the body of the person.. (a) The maximum speed of the satellite during its motion is 7.97 km s –1. (b) The minimum speed of...
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Displacement is independent of the path.. What is the average speed and average velocity of the car.. Average speed of the car. Find the height of the tower.. Maximum height of the projectile A = v. It changes the magnitude of linear velocity of the particle.. The acceleration of the particle at t = 2 s is. The speed of...
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Quantitatively, inertia of a body ∝ mass of the body.. ¾ inversely proportional to the mass m of the object.. Magni- tude of the force. Nature of the force Boy Earth. (a) pull of the earth, Mg vertically downward, (b) contact force by the table N, vertically upward, (c) pull of the string, T, along the string.. Sol.: Let the...
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R 2 = 4 F ...(i) Mass of the spherical portion removed from sphere. If the body is on the surface of the earth, i.e., r = R e (radius of the earth), then. At the centre of the earth, d = R e. Due to shape of the earth. An ellipse has two foci S and S ′ the...
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K = coefficient of thermal conductivity A = area of the hotter face. In the steady state, the temperature of the point C is T C . conductivity of the composite rod will be (a) 3( 1 2. The density of the oil is. Length of the wire at temperature T 2 is. Bulk modulus of the gas is given...
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Thermal equilibrium is the subject of the Zeroth law of thermodynamics.. DU : It is the value of the final internal energy minus the initial internal energy.. through a unit degree is called the molar specific heat of the substance.. where n is the number density and d is the diameter of the molecule.. Find the efficiency of the. out...
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Masses of the cylinder and the wedge are m 1 and m 2 respectively. Determine the number of moles of the gas in the capillary.. The breaking stress of the metal is 2 × 10 9 N m –2 . At the instant t = (ln 4) ms, the reading of the. The resistance of the ammeter is equal to....
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The capacitance of the capacitor is C. The tension in the upper portion of the chain is equal to. length of the wire is l. The threshold wavelength of the metal sphere is l 0 (>. Assume that the length of the bar does not change.). (a) The equivalent resistance of the circuit is 3 W.. Which of the following...
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