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0Votes1Answers51ViewsA reference frame attached to the earth (a) is an inertial frame by definition
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0Votes1Answers64ViewsAt a metro station, a girl walks up a stationary escalator in time t1 . If she remains sta...
By Geet, 8 months ago1Replies 
0Votes1Answers53ViewsThe displacement of a particle is given by x = (t – 2)^2 where x is in metre and t in seco...
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0Votes1Answers136ViewsA vehicle travels half the distance l with speed v1 and the other half with speed v2 , the...
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0Votes1Answers40ViewsSpeed of mechanical wave is determined by (a) inertial properties of the medium
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0Votes1Answers45ViewsIf the output of the information source is a nonelectrical signal like a voice signal, a ...
By Saumya, 8 months ago1Replies 
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0Votes1Answers43ViewsIf a light body and heavy body have same kinetic energy, then which one has greater linear...
By Shanti, 8 months ago1Replies 
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0Votes1Answers54ViewsWhich of the following statements is correct for any thermodynamic system ?
By Salma Khan, 8 months ago1Replies 
0Votes1Answers47ViewsFirst law of thermodynamics states that (a) system can do work (b) system has temperature
By Salma Khan, 8 months ago1Replies 
0Votes1Answers51ViewsWhich of the following is incorrect regarding first law of thermodynamics?
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0Votes1Answers59ViewsIn planetary motion (a) the angular speed remains constant (b) the total angular momentum ...
By Shanti, 8 months ago1Replies 
0Votes1Answers48ViewsIf the distance of earth is halved from the sun, then the no. of days in a year will be
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0Votes1Answers70ViewsMolecules of a ideal gas behave like (a) inelastic rigid sphere (b) perfectly elastic non...
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0Votes1Answers40ViewsCooking gas containers are kept in a lorry moving with uniform speed. The temperature of t...
By Salma Khan, 8 months ago1Replies 
0Votes1Answers43ViewsThe average kinetic energy of gas molecules depends upon which of the following factor?
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0Votes1Answers42ViewsWhich of the following elastic module is used to describe the elastic behavior of object a...
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0Votes1Answers80ViewsWhat is the phenomenon of temporary delay in regaining the original configuration by an el...
By Saumya, 8 months ago1Replies

0Votes1Answers42ViewsSuppose a tunnel is dug along a diameter of the earth. A particle is dropped from a point,...
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0Votes1Answers41ViewsA particle moves in a circular path with a continuously increasing speed. Its motion is
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0Votes1Answers55ViewsThe energy required to charge a parallel plate condenser of plate separation d and plate a...
By Shanti, 8 months ago1Replies 
0Votes1Answers55ViewsAn electric dipole of moment vector p is placed normal to the lines of force of electric i...
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0Votes1Answers45ViewsWhen a mass is rotating in a plane about a fixed point, its angular momentum is directed a...
By Shanti, 8 months ago1Replies 
0Votes1Answers42ViewsAccording to the principle of conservation of angular momentum, if moment of inertia of a ...
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0Votes1Answers53ViewsA long solenoid has a radius a and number of turns per unit length n. If it carries a curr...
By Shanti, 8 months ago1Replies

0Votes1Answers45ViewsIn which of the following circuits the maximum power dissipation is observed?
By Shanti, 8 months ago1Replies 
0Votes1Answers55ViewsAn A.C. source is connected to a resistive circuit. Which of the following is true?
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0Votes1Answers58ViewsAccording to Maxwell’s equation the velocity of light in any medium is expressed as
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0Votes1Answers44ViewsIn Einstein’s picture of Photoelectric emission, the photoelectric emission does not take ...
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