For a biconvex lens with focal length equal to the radius of curvature, the refractive index of the lens material is 1.5. This follows from the lens-maker's formula with symmetric curvature. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/
For a biconvex lens with focal length equal to the radius of curvature, the refractive index of the lens material is 1.5. This follows from the lens-maker’s formula with symmetric curvature.
The focal length of a concave mirror does not change when immersed in water because it depends only on the mirror's geometry and not the surrounding medium. Thus, its focal length remains 20 cm. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/
The focal length of a concave mirror does not change when immersed in water because it depends only on the mirror’s geometry and not the surrounding medium. Thus, its focal length remains 20 cm.
The Rydberg constant for hydrogen is approximately 1.097 × 10⁷ m⁻¹. It represents the limiting value of the highest wavenumber (inverse wavelength) of any photon emitted in the hydrogen atom's spectral series. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapteRead more
The Rydberg constant for hydrogen is approximately 1.097 × 10⁷ m⁻¹. It represents the limiting value of the highest wavenumber (inverse wavelength) of any photon emitted in the hydrogen atom’s spectral series.
The impact parameter is the perpendicular distance between the initial trajectory of a particle (or object) and the center of the force field it interacts with. It helps describe scattering processes, indicating how closely a particle approaches the target's center. For more visit here: https://www.Read more
The impact parameter is the perpendicular distance between the initial trajectory of a particle (or object) and the center of the force field it interacts with. It helps describe scattering processes, indicating how closely a particle approaches the target’s center.
Rutherford's atomic model proposed that an atom consists of a dense, positively charged nucleus containing most of its mass, surrounded by electrons orbiting in empty space. It introduced the concept of a nuclear atom but couldn't explain atomic stability or spectral lines. For more visit here: httpRead more
Rutherford’s atomic model proposed that an atom consists of a dense, positively charged nucleus containing most of its mass, surrounded by electrons orbiting in empty space. It introduced the concept of a nuclear atom but couldn’t explain atomic stability or spectral lines.
The classical Rutherford model fails because orbiting electrons, according to electromagnetic theory, should continuously emit radiation, lose energy, and spiral into the nucleus. This instability cannot explain atomic stability or discrete spectral lines observed in atomic emission, contradicting eRead more
The classical Rutherford model fails because orbiting electrons, according to electromagnetic theory, should continuously emit radiation, lose energy, and spiral into the nucleus. This instability cannot explain atomic stability or discrete spectral lines observed in atomic emission, contradicting experimental results.
Ionization energy is the energy required to remove the outermost electron from an atom in its ground state to infinity. For a hydrogen atom, its ionization energy is 13.6eV (electron volts) or 2.18 × 10⁻¹⁸ J. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapterRead more
Ionization energy is the energy required to remove the outermost electron from an atom in its ground state to infinity. For a hydrogen atom, its ionization energy is
13.6eV (electron volts) or 2.18 × 10⁻¹⁸ J.
Bohr’s quantization condition states that the angular momentum of an electron in a stationary orbit is quantized and given by mvr = nℏ, where m is mass, v is velocity, r is radius, and n is an integer. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/
Bohr’s quantization condition states that the angular momentum of an electron in a stationary orbit is quantized and given by mvr = nℏ, where m is mass, v is velocity, r is radius, and n is an integer.
When a hydrogen atom is in the third excited state (n = 4), the maximum number of spectral lines is given by n(n−1)/2 . For n = 4, the number of lines is 4(4−1)/2 = 6. Class 12 Physics Chapter 12 Atoms Session 2024-2025.
When a hydrogen atom is in the third excited state (n = 4), the maximum number of spectral lines is given by n(n−1)/2 . For n = 4, the number of lines is 4(4−1)/2 = 6.
Class 12 Physics
Chapter 12 Atoms Session 2024-2025.
When a hydrogen atom is in the third excited state (n = 4), the maximum number of spectral lines is given by n(n−1)/2 . For n = 4, the number of lines is 4(4−1)/2 = 6. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/
When a hydrogen atom is in the third excited state (n = 4), the maximum number of spectral lines is given by n(n−1)/2 . For n = 4, the number of lines is 4(4−1)/2 = 6.
The focal length of a biconvex lens is equal to the radius of curvature of either face. What is the refractive index of the lens material?
For a biconvex lens with focal length equal to the radius of curvature, the refractive index of the lens material is 1.5. This follows from the lens-maker's formula with symmetric curvature. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/
For a biconvex lens with focal length equal to the radius of curvature, the refractive index of the lens material is 1.5. This follows from the lens-maker’s formula with symmetric curvature.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/
A concave mirror of 20 cm focal length is immersed into water. What is its new focal length?
The focal length of a concave mirror does not change when immersed in water because it depends only on the mirror's geometry and not the surrounding medium. Thus, its focal length remains 20 cm. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/
The focal length of a concave mirror does not change when immersed in water because it depends only on the mirror’s geometry and not the surrounding medium. Thus, its focal length remains 20 cm.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/
What is the value of Rydberg constant for hydrogen?
The Rydberg constant for hydrogen is approximately 1.097 × 10⁷ m⁻¹. It represents the limiting value of the highest wavenumber (inverse wavelength) of any photon emitted in the hydrogen atom's spectral series. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapteRead more
The Rydberg constant for hydrogen is approximately 1.097 × 10⁷ m⁻¹. It represents the limiting value of the highest wavenumber (inverse wavelength) of any photon emitted in the hydrogen atom’s spectral series.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/
What do you mean by the term impact parameter?
The impact parameter is the perpendicular distance between the initial trajectory of a particle (or object) and the center of the force field it interacts with. It helps describe scattering processes, indicating how closely a particle approaches the target's center. For more visit here: https://www.Read more
The impact parameter is the perpendicular distance between the initial trajectory of a particle (or object) and the center of the force field it interacts with. It helps describe scattering processes, indicating how closely a particle approaches the target’s center.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/
What is the main feature of Rutherford’s atom model?
Rutherford's atomic model proposed that an atom consists of a dense, positively charged nucleus containing most of its mass, surrounded by electrons orbiting in empty space. It introduced the concept of a nuclear atom but couldn't explain atomic stability or spectral lines. For more visit here: httpRead more
Rutherford’s atomic model proposed that an atom consists of a dense, positively charged nucleus containing most of its mass, surrounded by electrons orbiting in empty space. It introduced the concept of a nuclear atom but couldn’t explain atomic stability or spectral lines.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/
Why is the classical (Rutherford) model for an atom, of electron orbiting around the nucleus, not able to explain the atomic structure?
The classical Rutherford model fails because orbiting electrons, according to electromagnetic theory, should continuously emit radiation, lose energy, and spiral into the nucleus. This instability cannot explain atomic stability or discrete spectral lines observed in atomic emission, contradicting eRead more
The classical Rutherford model fails because orbiting electrons, according to electromagnetic theory, should continuously emit radiation, lose energy, and spiral into the nucleus. This instability cannot explain atomic stability or discrete spectral lines observed in atomic emission, contradicting experimental results.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/
Define ionisation energy. What is its value for a hydrogen atom?
Ionization energy is the energy required to remove the outermost electron from an atom in its ground state to infinity. For a hydrogen atom, its ionization energy is 13.6eV (electron volts) or 2.18 × 10⁻¹⁸ J. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapterRead more
Ionization energy is the energy required to remove the outermost electron from an atom in its ground state to infinity. For a hydrogen atom, its ionization energy is
13.6eV (electron volts) or 2.18 × 10⁻¹⁸ J.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/
State Bohr’s quantisation condition for defining stationary orbits.
Bohr’s quantization condition states that the angular momentum of an electron in a stationary orbit is quantized and given by mvr = nℏ, where m is mass, v is velocity, r is radius, and n is an integer. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/
Bohr’s quantization condition states that the angular momentum of an electron in a stationary orbit is quantized and given by mvr = nℏ, where m is mass, v is velocity, r is radius, and n is an integer.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/
What is the maximum number of spectral lines emitted by a hydrogen atom when it is in the third excited state?
When a hydrogen atom is in the third excited state (n = 4), the maximum number of spectral lines is given by n(n−1)/2 . For n = 4, the number of lines is 4(4−1)/2 = 6. Class 12 Physics Chapter 12 Atoms Session 2024-2025.
When a hydrogen atom is in the third excited state (n = 4), the maximum number of spectral lines is given by n(n−1)/2 . For n = 4, the number of lines is 4(4−1)/2 = 6.
Class 12 Physics
See lessChapter 12 Atoms Session 2024-2025.
What is the maximum number of spectral lines emitted by a hydrogen atom when it is in the third excited state?
When a hydrogen atom is in the third excited state (n = 4), the maximum number of spectral lines is given by n(n−1)/2 . For n = 4, the number of lines is 4(4−1)/2 = 6. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/
When a hydrogen atom is in the third excited state (n = 4), the maximum number of spectral lines is given by n(n−1)/2 . For n = 4, the number of lines is 4(4−1)/2 = 6.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/