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Which of the following is/are V-shaped molecule (s) (a) SnCl2 (b) SnCl4 (c) COS (d) PbCl2
29
Nov
Which of the following is/are V-shaped molecule (s) (a) SnCl2 (b) SnCl4 (c) COS (d) PbCl2 Which of the following is/are V-shaped molecule (s) (a) SnCl2 (b) SnCl4 (c) COS (d) PbCl2 November 29, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Which of the following statement is/are correct (a) Boric acid is a hydrogen bonded molecule (b) Al2O3 is amphoteric while B2O3 is acidic
29
Nov
Which of the following statement is/are correct (a) Boric acid is a hydrogen bonded molecule (b) Al2O3 is amphoteric while B2O3 is acidic Which of the following statement is/are correct (a) Boric acid is a hydrogen bonded molecule (b) Al2O3 is amphoteric while B2O3 is acidic November 29, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
The option(s) with only amphoteric oxides is (are) (a) NO, B2O3, PbO, SnO2 (b) Cr2O3, CrO, SnO, PbO
29
Nov
The option(s) with only amphoteric oxides is (are) (a) NO, B2O3, PbO, SnO2 (b) Cr2O3, CrO, SnO, PbO B2O3 CrO PbO SnO SnO2 (b) Cr2O3 The option(s) with only amphoteric oxides is (are) (a) NO November 29, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Tags:
B2O3 ,
CrO ,
PbO ,
SnO ,
SnO2 (b) Cr2O3 ,
The option(s) with only amphoteric oxides is (are) (a) NO ,
Among the following, the correct statement(s) is (are) (a) Al(CH3)3 has the three-centre two-electron bonds in its dimeric structure
29
Nov
Among the following, the correct statement(s) is (are) (a) Al(CH3)3 has the three-centre two-electron bonds in its dimeric structure Among the following the correct statement(s) is (are) (a) Al(CH3)3 has the three-centre two-electron bonds in its dimeric structure November 29, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The stopping potential V0 (in volt) as a function of frequency (v) for a sodium emitter, is shown in the figure. The work function of sodium, from the data plotted in the figure, will be : (Given : Planck’s constant (h) = 6.63 × 10^−34 Js, electron charge e = 1.6 × 10^−19 C)
29
Nov
The stopping potential V0 (in volt) as a function of frequency (v) for a sodium emitter, is shown in the figure. The work function of sodium, from the data plotted in the figure, will be : (Given : Planck’s constant (h) = 6.63 × 10^−34 Js, electron charge e = 1.6 × 10^−19 C) electron [...]
A 2 mW laser operates at a wavelength of 500 nm. The number of photons that will be emitted per second is : [Given Planck’s constant h=6.6×10^−34Js, speed of light c=3.0×10^8 m/s]
29
Nov
A 2 mW laser operates at a wavelength of 500 nm. The number of photons that will be emitted per second is : [Given Planck’s constant h=6.6×10^−34Js, speed of light c=3.0×10^8 m/s] A 2 mW laser operates at a wavelength of 500 nm. The number of photons that will be emitted per second is : [...]
Light is incident normally on a completely absorbing surface with an energy flux of 25 W cm^−2. if the surface has an area of 25 cm^−2, the momentum transferred to the surface in 40 min time duration will be :
29
Nov
Light is incident normally on a completely absorbing surface with an energy flux of 25 W cm^−2. if the surface has an area of 25 cm^−2, the momentum transferred to the surface in 40 min time duration will be : Light is incident normally on a completely absorbing surface with an energy flux of 25 [...]
In a photoelectric effect experiment the threshold wavelength of the light is 380 nm. If the wavelength of incident light is 260 nm, the maximum kinetic energy of emitted electrons will be: Given E (in eV) = 1237/ lamba (in nm)
29
Nov
In a photoelectric effect experiment the threshold wavelength of the light is 380 nm. If the wavelength of incident light is 260 nm, the maximum kinetic energy of emitted electrons will be: Given E (in eV) = 1237/ lamba (in nm) In a photoelectric effect experiment the threshold wavelength of the light is 380 nm. [...]
50 W/m^2 energy density of sunlight is normally incident on the surface of a solar panel. Some part of incident energy (25%) is reflected from the surface and the rest is absorbed. The force exerted on 1m^2 surface area will be close to (c=3×10^8m/s) :-
29
Nov
50 W/m^2 energy density of sunlight is normally incident on the surface of a solar panel. Some part of incident energy (25%) is reflected from the surface and the rest is absorbed. The force exerted on 1m^2 surface area will be close to (c=3×10^8m/s) :- A particle 'P' is formed due to a completely inelastic [...]
The Colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to (a) Decrease in Pie – sigma gap down the group
29
Nov
The Colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to (a) Decrease in Pie – sigma gap down the group The Colour of the X2 molecules of group 17 elements changes gradually from yellow to violet down the group. This is due [...]