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0Votes1Answers34ViewsA reference frame attached to the earth (a) is an inertial frame by definition
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0Votes1Answers40ViewsAt a metro station, a girl walks up a stationary escalator in time t1 . If she remains sta...
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0Votes1Answers33ViewsThe displacement of a particle is given by x = (t – 2)^2 where x is in metre and t in seco...
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0Votes1Answers41ViewsA vehicle travels half the distance l with speed v1 and the other half with speed v2 , the...
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0Votes1Answers27ViewsSpeed of mechanical wave is determined by (a) inertial properties of the medium
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0Votes1Answers23ViewsIf the output of the information source is a nonelectrical signal like a voice signal, a ...
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0Votes1Answers26ViewsIf a light body and heavy body have same kinetic energy, then which one has greater linear...
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0Votes1Answers39ViewsWhich of the following statements is correct for any thermodynamic system ?
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0Votes1Answers29ViewsFirst law of thermodynamics states that (a) system can do work (b) system has temperature
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0Votes1Answers30ViewsWhich of the following is incorrect regarding first law of thermodynamics?
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0Votes1Answers31ViewsIn planetary motion (a) the angular speed remains constant (b) the total angular momentum ...
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0Votes1Answers30ViewsIf the distance of earth is halved from the sun, then the no. of days in a year will be
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0Votes1Answers30ViewsMolecules of a ideal gas behave like (a) inelastic rigid sphere (b) perfectly elastic non...
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0Votes1Answers26ViewsCooking gas containers are kept in a lorry moving with uniform speed. The temperature of t...
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0Votes1Answers30ViewsThe average kinetic energy of gas molecules depends upon which of the following factor?
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0Votes1Answers25ViewsWhich of the following elastic module is used to describe the elastic behavior of object a...
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0Votes1Answers36ViewsWhat is the phenomenon of temporary delay in regaining the original configuration by an el...
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0Votes1Answers24ViewsSuppose a tunnel is dug along a diameter of the earth. A particle is dropped from a point,...
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0Votes1Answers27ViewsA particle moves in a circular path with a continuously increasing speed. Its motion is
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0Votes1Answers23ViewsThe energy required to charge a parallel plate condenser of plate separation d and plate a...
By Shanti, 4 months ago1Replies 
0Votes1Answers27ViewsAn electric dipole of moment vector p is placed normal to the lines of force of electric i...
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0Votes1Answers28ViewsWhen a mass is rotating in a plane about a fixed point, its angular momentum is directed a...
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0Votes1Answers26ViewsAccording to the principle of conservation of angular momentum, if moment of inertia of a ...
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0Votes1Answers22ViewsA long solenoid has a radius a and number of turns per unit length n. If it carries a curr...
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0Votes1Answers26ViewsIn which of the following circuits the maximum power dissipation is observed?
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0Votes1Answers32ViewsAn A.C. source is connected to a resistive circuit. Which of the following is true?
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0Votes1Answers32ViewsAccording to Maxwell’s equation the velocity of light in any medium is expressed as
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0Votes1Answers26ViewsIn Einstein’s picture of Photoelectric emission, the photoelectric emission does not take ...
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