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.
State the least count of a screw gauge.
For a screw gauge, least count = Pitch/Number of divisions on the circular scale. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
For a screw gauge, least count = Pitch/Number of divisions on the circular scale.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
What is the dimensional formula for power?
Dimensions of power = [𝑀^1𝐿^2𝑇^−3]. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
Dimensions of power = [𝑀^1𝐿^2𝑇^−3].
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
A glass lens of refractive index 1.5 is placed in a trough of liquid. What must be the refractive index of the liquid in order to mark the lens disappear?
To make the glass lens disappear, the refractive index of the liquid must match that of the glass, i.e., 1.5. This eliminates refraction at the lens surface, making it optically invisible in the liquid. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/
To make the glass lens disappear, the refractive index of the liquid must match that of the glass, i.e., 1.5. This eliminates refraction at the lens surface, making it optically invisible in the liquid.
For more visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/
Why is dimensional analysis not always reliable?
Dimensional analysis cannot detect dimensionless constants or verify functional dependence on trigonometric or exponential terms. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
Dimensional analysis cannot detect dimensionless constants or verify functional dependence on trigonometric or exponential terms.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
Explain how torque can be expressed as a vector product of two vectors. How is the direction of torque determined?
Torque can be represented as a vector product of two vectors: the position vector and the force vector. In this context, the torque vector represents the rotational effect of a force applied at a distance from an axis of rotation. The position vector points from the axis of rotation to the point wheRead more
Torque can be represented as a vector product of two vectors: the position vector and the force vector. In this context, the torque vector represents the rotational effect of a force applied at a distance from an axis of rotation. The position vector points from the axis of rotation to the point where the force is applied, while the force vector indicates the direction and magnitude of the applied force.
With torque considered as a vector, both its magnitude and direction are thus reflected. This makes it clearer how a force affects any kind of rotational motion. The magnitude of torque has two factors: the distance from the pivot to the point at which a force is applied as well as the angle through which the force is applied.
The direction of a torque vector is found using the right-hand rule. According to this rule, if you curl the fingers of your right hand in the direction of the force vector while keeping your thumb extended along the position vector, your thumb will point in the direction of the torque vector. This direction indicates the axis of rotation and the sense of rotation that the force will induce on the object. Overall, expressing torque as a vector product simplifies the analysis of rotational dynamics in various physical systems.
See more: – https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-6/
See less