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Cerium (Z = 58) is an important member of the lanthanoids. Which of the following statements about cerium is incorrect (a) The +4 oxidation state of cerium is not known in solutions
30
Nov
Cerium (Z = 58) is an important member of the lanthanoids. Which of the following statements about cerium is incorrect (a) The +4 oxidation state of cerium is not known in solutions Cerium (Z = 58) is an important member of the lanthanoids. Which of the following statements about cerium is incorrect (a) The +4 [...]
If the de – Broglie wavelength of the electron in nth Bohr orbit in hydrogenic atom is equal to 1.5 piea0 (a0 is bohr radius ), then the valuw of n /z is
30
Nov
If the de – Broglie wavelength of the electron in nth Bohr orbit in hydrogenic atom is equal to 1.5 piea0 (a0 is bohr radius ), then the valuw of n /z is If the de - Broglie wavelength of the electron in nth Bohr orbit in hydrogenic atom is equal to 1.5 piea0 (a0 [...]
What is the work function of the metal if the light of wavelength 4000 A generates photoelectrons of velocity 6 x 10^5 m/s from it
30
Nov
What is the work function of the metal if the light of wavelength 4000 A generates photoelectrons of velocity 6 x 10^5 m/s from it What is the work function of the metal if the light of wavelength 4000 A generates photoelectrons of velocity 6 x 10^5 m/s from it November 30, 2020 Category: Uncategorised [...]
The de – Broglie wavelength ( lamda ) associated with a photoelectron varies with the frequency (v) of the incident radiation as ,
30
Nov
The de – Broglie wavelength ( lamda ) associated with a photoelectron varies with the frequency (v) of the incident radiation as , The de - Broglie wavelength ( lamda ) associated with a photoelectron varies with the frequency (v) of the incident radiation as November 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM [...]
A reduction in atomic size with increase in atomic number is a characteristic of elements of (a) High atomic masses (b) d-block (c) f-block
30
Nov
A reduction in atomic size with increase in atomic number is a characteristic of elements of (a) High atomic masses (b) d-block (c) f-block A reduction in atomic size with increase in atomic number is a characteristic of elements of (a) High atomic masses (b) d-block (c) f-block November 30, 2020 Category: Uncategorised (JEE Advanced [...]
A positively charged sphere of radius 10 cm is surrounded by medium of dielectric constant 10. If the magnitude of the electric field intensity of the point outside the sphere at a distance r from the centre of the sphere is 6.4 x 10^-4 V/m, and the the sphere is 6.4 x 10^-12 C, then r is
30
Nov
A positively charged sphere of radius 10 cm is surrounded by medium of dielectric constant 10. If the magnitude of the electric field intensity of the point outside the sphere at a distance r from the centre of the sphere is 6.4 x 10^-4 V/m, and the the sphere is 6.4 x 10^-12 C, then [...]
A charge 10 μC is placed at the centre of a hemisphere of radius R=10cm as shown. The electric flux through the hemisphere is
30
Nov
A charge 10 μC is placed at the centre of a hemisphere of radius R=10cm as shown. The electric flux through the hemisphere is A charge 10 μC is placed at the centre of a hemisphere of radius R=10cm as shown. The electric flux through the hemisphere is November 30, 2020 Category: Cengage JEE Mains [...]
A disc of radius a/4 having a uniformly distributed charge 6C is placed in the x-y plane with its centre at (−a/2,0,0). A rod of length a carrying a uniformly distributed charge 8C is placed on the x-axis from x=a/4 to x=5a/4. Two point charges −7C and 3C are placed at (a/4,−a/4,0) and (−3a/4,3a/4,0), respectively. Consider a cubical surface formed by is x surfaces x=±a/2, y=±a/2, z=±a/2. The electric flux through this cubical surface is
30
Nov
A disc of radius a/4 having a uniformly distributed charge 6C is placed in the x-y plane with its centre at (−a/2,0,0). A rod of length a carrying a uniformly distributed charge 8C is placed on the x-axis from x=a/4 to x=5a/4. Two point charges −7C and 3C are placed at (a/4,−a/4,0) and (−3a/4,3a/4,0), respectively. [...]
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−a/4 ,
0 ) ,
0) and (−3a/4 ,
0). A rod of length a carrying a uniformly distributed charge 8C is placed on the x-axis from x=a/4 to x=5a/4. Two point charges −7C and 3C are placed at (a/4 ,
3a/4 ,
A disc of radius a/4 having a uniformly distributed charge 6C is placed in the x-y plane with its centre at (−a/2 ,
respectively. Consider a cubical surface formed by is x surfaces x=±a/2 ,
y=±a/2 ,
z=±a/2. The electric flux through this cubical surface is ,
Two non-conducting spheres of radii R1 and R2 and carrying uniform volume charge densities +ρ and −ρ, respectively, are placed such that they partially overlap, as shown in the figure. The electric field in the cavity is
30
Nov
Two non-conducting spheres of radii R1 and R2 and carrying uniform volume charge densities +ρ and −ρ, respectively, are placed such that they partially overlap, as shown in the figure. The electric field in the cavity is are placed such that they partially overlap as shown in the figure. The electric field in the cavity [...]
The flux of the point charge q through a circular disc of radius R at a distance a from it is
30
Nov
The flux of the point charge q through a circular disc of radius R at a distance a from it is The flux of the point charge q through a circular disc of radius R at a distance a from it is November 30, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter [...]