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Two different types of rubber are found to have the stress – strain curves as shown in the figure stress 1) In what ways do these curves suffer from the stress- strain curve of a metal wire?2) Which of the two rubbers A and B would you prefer to be installed in the working of a heavy machinery3) Which of these two rubbers would you choose for a car

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State the law of

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Find the work done in blowing a soap bubble of surface tension 0.06 N/m from 2cm radius to 5cm

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What is the work done in splitting a drop of water of 1 mm radius into 64 droplets? Given the surface tension of water is `72 × 10^(-3)

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A metallic sphere of radius `1 × 10^(-3) m` and density `1 × 10^4 kg` | `m^3` enters a tank of water after a free fall through a high ‘h’ in earth’s gravitational field. If its velocity remains unchanged after entering water, determine the value of h. Given :-Co-efficient of viscosity of water `= 1 × 10^(-3) Ns` | `m^2; g = 10 m` | `s^2`; density of water `= 1 × 10^3 kg `|

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What is stoke’s law and what are the factors on which viscous drag

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The density of a solid at `0^oC and `500^oC` is in the ratio 1.027 : 1. Find the coefficient of linear expansion of the

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Calculate Cp for air, given that `Cv =0.162 cal g^(-1) k^(-1)` and density air at N.T. P is `0.001293

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If for a gas, `R/(C_V)= 0.67` then which gas is this:- monatomic, diatomic and tri

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If half mole of helium is contained in a container at S. T. P. How much heat energy is needed to double the pressure of the gas, keeping the volume of the gas constant? Given specific heat of gas `= 3J | g

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Find out the ratio between most probable velocity, average velocity and root Mean square Velocity of gas

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The earth with out its atmosphere would be inhospitably cold. Explain

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Two cylinders A and B of equal capacity are connected to each other via a stopcock. A contains a gas at standard temperature and pressure. B is completely evacuated. The entire system is thermally insulated. The stopcock is suddenly opened. Answer the following : What is the final pressure

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Two cylinders A and B of equal capacity are connected to each other via a stopcock. A contains a gas at standard temperature and pressure. B is completely evacuated. The entire system is thermally insulated. The stopcock is suddenly opened. Answer the following : What is the change in

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A vessel contains two nonreactive gases : neon (monotonic) and oxygen (diatomic). The ratio of their partial pressures is 3:2. Estimate the ratio of (i) number of molecules and (ii) mass density of neon and oxygen in the vessel. Atomic mass of Ne = 20.2 u, molecular mass of `O_2`= 32.0 u. Example

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Figure shows plot of PV/T versus P for `1.00×10^(–3)` kg of oxygen gas at two different temperatures. (a) What does the dotted plot signify? (b) Which is true: T1 > T2 or T1< T2 ? (c) What is the value of PV/T where the curves meet on the y-axis? (d) If we obtained similar plots for 1.00×10–3 kg of hydrogen, would we get the same value of PV/T at the point where the curves meet on the y-axis? If not, what mass of hydrogen yields the same value of PV/T (for low pressure high temperature region of the

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An air bubble of volume 1.0 `cm^3` rises from the bottom of a lake 40 m deep at a temperature of 12 °C. To what volume does it grow when it reaches the surface, which is at a temperature of 35 °C

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The piston in the cylinder head of a locomotive has a stroke (twice the amplitude) of 1.0 m. If the piston moves with simple harmonic motion with an angular frequency of 200 rad/min, what is its maximum speed

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A mass attached to a spring is free to oscillate, with angular velocity ω, in a horizontal plane without friction or damping. It is pulled to a distance `x_0` and pushed towards the centre with a velocity `v_0` at time t = 0. Determine the amplitude of the resulting oscillations in terms of the parameters ω, `x_0` and `v_0`. [Hint : Start with the equation x = a cos (ωt+θ) and note that the initial velocity is

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A pipe, 30.0 cm long, is open at both ends. Which harmonic mode of the pipe resonates a 1.1 kHz source? Will resonance with the same source be observed if one end of the pipe is closed ? Take the speed of sound in air as 330 m

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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