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Which element gives maximum balanced oxide (a) V (b) Cr (c) Mn (d) Fe
30
Nov
Which element gives maximum balanced oxide (a) V (b) Cr (c) Mn (d) Fe Which element gives maximum balanced oxide (a) V (b) Cr (c) Mn (d) Fe November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
If the nitrogen atom has electronic configuration 1s^7, it would have energy lower than that of the normal ground state configuration 1s^2 2s^2 2P^3 , because the electrons would be closer to the nucleus. Yet 1s^7 is not observed because it violates.
30
Nov
If the nitrogen atom has electronic configuration 1s^7, it would have energy lower than that of the normal ground state configuration 1s^2 2s^2 2P^3 , because the electrons would be closer to the nucleus. Yet 1s^7 is not observed because it violates. because the electrons would be closer to the nucleus. Yet 1s^7 is not [...]
The quantum numbers +1/2 and – 1/2 for the electron spin represent (a) Rotation of the electron in clockwise and anticlockwise direction respectively (b) Rotation of the electron in anticlockwise and clockwise direction respectively (c) Magnetic moment of the electron pointing up and down respectively (d) Two quantum mechanical spin states which have no classical analogue
30
Nov
The quantum numbers +1/2 and – 1/2 for the electron spin represent (a) Rotation of the electron in clockwise and anticlockwise direction respectively (b) Rotation of the electron in anticlockwise and clockwise direction respectively (c) Magnetic moment of the electron pointing up and down respectively (d) Two quantum mechanical spin states which have no classical [...]
An electron of mass me, initially at rest, moves through a certain distance in a uniform electric field in time t1 A proton of mass mp, also, initially at rest, takes time t2 to move through an equal distance in this uniform electric field. Neglecting the effect of gravity, the ratio t2/t1 l is nearly equal to
30
Nov
An electron of mass me, initially at rest, moves through a certain distance in a uniform electric field in time t1 A proton of mass mp, also, initially at rest, takes time t2 to move through an equal distance in this uniform electric field. Neglecting the effect of gravity, the ratio t2/t1 l is nearly [...]
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An electron of mass me ,
initially at rest ,
moves through a certain distance in a uniform electric field in time t1 A proton of mass mp ,
takes time t2 to move through an equal distance in this uniform electric field. Neglecting the effect of gravity ,
the ratio t2/t1 l is nearly equal to ,
Two point +ve charges q each are placed at (−a,0) and (a,0) . A third +ve charge q0 is placed at (0,y) . Find the value of y for which the force at q0 is maximum.
30
Nov
Two point +ve charges q each are placed at (−a,0) and (a,0) . A third +ve charge q0 is placed at (0,y) . Find the value of y for which the force at q0 is maximum. 0 ) and ( + a 0) . A third +ve charge q0 is placed at (0 Two point [...]
Two equally charged identical metal spheres A and B repel each other with a force of 3×10^−5 N. Another identical uncharged sphere C is touched with A and then placed at the midpoint between A and B. Net force on C is.
30
Nov
Two equally charged identical metal spheres A and B repel each other with a force of 3×10^−5 N. Another identical uncharged sphere C is touched with A and then placed at the midpoint between A and B. Net force on C is. Force between two identical charges placed at a distance of r in vacuum [...]
Which of the following has highest ionic radii (a) Cr +3 (b) Mn +3 (c) Fe +3 (d) Co +3
30
Nov
Which of the following has highest ionic radii (a) Cr +3 (b) Mn +3 (c) Fe +3 (d) Co +3 Which of the following has highest ionic radii (a) Cr +3 (b) Mn +3 (c) Fe +3 (d) Co +3 November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Two identical charged spheres suspended from a common point by two mass-less strings of length l are initially at a distance d ( d much less than l) apart because of their mutual repulsion . Determine the angle formed between the two strings at equilibrium position.
30
Nov
Two identical charged spheres suspended from a common point by two mass-less strings of length l are initially at a distance d ( d much less than l) apart because of their mutual repulsion . Determine the angle formed between the two strings at equilibrium position. Force between two identical charges placed at a distance [...]
Under the action of a given coulombic force the acceleration of an electron is 2.5×10^22ms^−2. Then the magnitude of the acceleration of a proton under the action of same force is nearly
30
Nov
Under the action of a given coulombic force the acceleration of an electron is 2.5×10^22ms^−2. Then the magnitude of the acceleration of a proton under the action of same force is nearly Under the action of a given coulombic force the acceleration of an electron is 2.5×10^22ms^−2. Then the magnitude of the acceleration of a [...]
Chloride of which of the following elements will be coloured (a) Silver (b) Mercury (c) Zinc (d) Cobalt
30
Nov
Chloride of which of the following elements will be coloured (a) Silver (b) Mercury (c) Zinc (d) Cobalt Chloride of which of the following elements will be coloured (a) Silver (b) Mercury (c) Zinc (d) Cobalt November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,