Share & grow the world's knowledge!
We want to connect the people who have knowledge to the people who need it, to bring together people with different perspectives so they can understand each other better, and to empower everyone to share their knowledge.
A uniform disc is rotating with angular velocity 𝜔 . If its mass is doubled and radius is halved, what happens to its moment of inertia about its axis?
Moment of inertia of a disc about its axis is 𝐼 = 1/2𝑀𝑅². When M is doubled and R is halved, I = 1/2.2M.(R/2)² = 1/2MR². 1/2 = 1/2 Iᵢₙᵢₜᵢₐₗ. This question related to Chapter 6 physics Class 11th NCERT. From the Chapter 6 System of Particles and Rotational Motion. Give answer according to your undersRead more
Moment of inertia of a disc about its axis is 𝐼 = 1/2𝑀𝑅². When M is doubled and R is halved, I = 1/2.2M.(R/2)² = 1/2MR². 1/2 = 1/2 Iᵢₙᵢₜᵢₐₗ.
This question related to Chapter 6 physics Class 11th NCERT. From the Chapter 6 System of Particles and Rotational Motion. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-6/
A bullet hits gets embedded in a solid block resting on a frictionless surface. In this process which one of the following is correct?
When a bullet strikes and penetrates into a solid block placed on a frictionless surface, the process it goes through will be that which emphasizes important principles of conservation of momentum and energy. Here, the system is the bullet and the block, assumed to be isolated from all external forcRead more
When a bullet strikes and penetrates into a solid block placed on a frictionless surface, the process it goes through will be that which emphasizes important principles of conservation of momentum and energy. Here, the system is the bullet and the block, assumed to be isolated from all external forces acting in the horizontal direction. Therefore, the total momentum of the system at the beginning is equal to the total momentum of the system after the collision; thus, the momentum is conserved.
However, it is significant to note that kinetic energy is not conserved in this process. The collision between the bullet and the block is an example of an inelastic collision, in which the two objects stick together after impact. During this interaction, part of the bullet’s kinetic energy is transformed into other forms of energy such as heat and sound. Because of this, whereas the system’s momentum remains invariant during the collision, the kinetic energy is reduced.
In summary, when the bullet is embedded in the block, only momentum is conserved, while kinetic energy is lost in the process. This illustrates the fundamental differences between momentum and kinetic energy conservation in collision events.
Click here for more :
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-5/
A parallel beam of monochromatic light falls normally on a single narrow slit. How does the angular width of the principal maximum in the resulting diffraction pattern depend on width of the slit?
The angular width of the principal maximum in a single-slit diffraction pattern is inversely proportional to the slit width. As the slit width decreases, the angular width increases, spreading the diffraction pattern more widely on the screen. For more visit here: https://www.tiwariacademy.com/ncertRead more
The angular width of the principal maximum in a single-slit diffraction pattern is inversely proportional to the slit width. As the slit width decreases, the angular width increases, spreading the diffraction pattern more widely on the screen.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-10/
Which of the following is not a characteristic of the center of mass of a system?
The center of mass may lie outside the body for irregular shapes (e.g., a ring or hollow sphere). Hence, the statement that it always lies inside the object is incorrect. This question related to Chapter 6 physics Class 11th NCERT. From the Chapter 6 System of Particles and Rotational Motion. Give aRead more
The center of mass may lie outside the body for irregular shapes (e.g., a ring or hollow sphere). Hence, the statement that it always lies inside the object is incorrect. This question related to Chapter 6 physics Class 11th NCERT. From the Chapter 6 System of Particles and Rotational Motion. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-6/
Does the appearance of bright and dark fringes in the interference pattern violate, in any way, conservation of energy? Explain.
The appearance of bright and dark fringes in an interference pattern does not violate the conservation of energy. Energy is redistributed, not lost. In regions of constructive interference (bright fringes), energy is concentrated, while in destructive interference (dark fringes), it is minimized. ThRead more
The appearance of bright and dark fringes in an interference pattern does not violate the conservation of energy. Energy is redistributed, not lost. In regions of constructive interference (bright fringes), energy is concentrated, while in destructive interference (dark fringes), it is minimized. The total energy across the pattern remains constant, adhering to the principle of conservation of energy.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-10/