NEET 2017 PITA

Instructions

For the following questions answer them individually

NEET 2017 PITA - Question 41


The angle between $$\overrightarrow{A} - \overrightarrow{B}$$ and $$\overrightarrow{A} \times \overrightarrow{B}$$ is $$\overrightarrow{A} \neq \overrightarrow{B}$$:

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NEET 2017 PITA - Question 42


A satellite of mass m is in circular orbit of radius $$3 R_E$$ about earth (mass of earth $$M_E$$, radius of earth $$R_E$$). How much additional energy is required to transfer the satellite to an orbit of radius $$9 R_E$$ ?

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NEET 2017 PITA - Question 43


A wheel having mass m has charges +q and -q on diametrically opposite points. It remains in equilibrium on a rough inclined plane in the presence of a vertical electric field E. Then value of E is :

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NEET 2017 PITA - Question 44


A uniform magnetic field of 0.3 T is established along the positive Z-direction. A rectangular loop in XY plane of sides 10 cm and 5 cm carries a current of I = 12 A as shown. The torque on the loop is :

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NEET 2017 PITA - Question 45


The rotational kinetic energy of a solid sphere of mass 3 kg and radius 0.2 m rolling down an inclined plane of height 7 m is :

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NEET 2017 PITA - Question 46


Consider the following sequence of reactions :


The substance ‘B’ is

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NEET 2017 PITA - Question 47


Toluene in the vapour phase is in equilibrium with a solution of benzene and toluene having mole fraction of toulene 0.50 If vapour pressure of pure benzene is 119 torr and that of toluene is 37.0 torr at the same temperature, mole fraction of toluene in vapour phase will be :

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NEET 2017 PITA - Question 48


Among halogens, the one which can oxidise water to oxygen is :

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NEET 2017 PITA - Question 49


The reaction :

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NEET 2017 PITA - Question 50


Amongst the following compounds the one which is most easily sulphonated is

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