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Two charges +6μC and −4μC are placed 15 cm apart as shown. At what distance from A to its right the electrostatic potential is zero (distances in cm) ?
30
Nov
Two charges +6μC and −4μC are placed 15 cm apart as shown. At what distance from A to its right the electrostatic potential is zero (distances in cm) ? Two charges +6μC and −4μC are placed 15 cm apart as shown. At what distance from A to its right the electrostatic potential is zero (distances [...]
Assertion : Copper metal gets readily corroded in an acidic aqueous solution. Reason : Free energy change for this process is positive.
30
Nov
Assertion : Copper metal gets readily corroded in an acidic aqueous solution. Reason : Free energy change for this process is positive. Assertion : Copper metal gets readily corroded in an acidic aqueous solution. Reason : Free energy change for this process is positive. November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
Assertion : Solution of Na2CrO4 in water is intensely coloured. Reason : Oxidation state of Cr in Na2CrO4 is + VI.
30
Nov
Assertion : Solution of Na2CrO4 in water is intensely coloured. Reason : Oxidation state of Cr in Na2CrO4 is + VI. Assertion : Solution of Na2CrO4 in water is intensely coloured. Reason : Oxidation state of Cr in Na2CrO4 is + VI. November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
Assertion : Pure iron is not used for making tools and machines. Reason : Pure iron is hard.
30
Nov
Assertion : Pure iron is not used for making tools and machines. Reason : Pure iron is hard. Assertion : Pure iron is not used for making tools and machines. Reason : Pure iron is hard. November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Assertion : Transition metals show variable valency. Reason : Due to a large energy difference between the ns2 and (n – 1)d electrons.
30
Nov
Assertion : Transition metals show variable valency. Reason : Due to a large energy difference between the ns2 and (n – 1)d electrons. Assertion : Transition metals show variable valency. Reason : Due to a large energy difference between the ns2 and (n - 1)d electrons. November 30, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
The radius of the second Bohr orbit for hydrogen atom is: [Given: Planck’s const. h=6.6262×10 −34 Js; mass of electron =9.1091×10 −31 kg; charge of electron, e=1.60210 × 10 ^−19 C; permittivity of vacuum, ε 0=8.854185×10 −12 kg −1 m −3 A 2 ]
30
Nov
The radius of the second Bohr orbit for hydrogen atom is: [Given: Planck’s const. h=6.6262×10 −34 Js; mass of electron =9.1091×10 −31 kg; charge of electron, e=1.60210 × 10 ^−19 C; permittivity of vacuum, ε 0=8.854185×10 −12 kg −1 m −3 A 2 ] e=1.60210 × 10 ^−19 C; permittivity of vacuum The radius of [...]
The energy of an electron in the first Bohr orbit of H atom is −13.6eV. The possible energy values (s) of the excited state (s) for electron in bohr orbits of hydrogen is (are)
30
Nov
The energy of an electron in the first Bohr orbit of H atom is −13.6eV. The possible energy values (s) of the excited state (s) for electron in bohr orbits of hydrogen is (are) The energy of an electron in the first Bohr orbit of H atom is −13.6eV. The possible energy values (s) of [...]
How many unpaired electrons are present in Ni^2+ carbon ( atomic number = 28 )
30
Nov
How many unpaired electrons are present in Ni^2+ carbon ( atomic number = 28 ) How many unpaired electrons are present in Ni^2+ carbon ( atomic number = 28 ) November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The valence shell electronic configuration of Cr 2+ ion is (a) 4s0 3d4 (b) 4s2 3d2
30
Nov
The valence shell electronic configuration of Cr 2+ ion is (a) 4s0 3d4 (b) 4s2 3d2 The valence shell electronic configuration of Cr 2+ ion is (a) 4s0 3d4 (b) 4s2 3d2 November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The series limit for Balmer series of H – spectra is
30
Nov
The series limit for Balmer series of H – spectra is The series limit for Balmer series of H - spectra is November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,