Doubling the number of divisions on the circular scale of a spherometer will decrease the least count by half. The least count is inversely proportional to the number of divisions, so as the number of divisions increases, the least count decreases.
effect on inertia of a body if force is double?
You can calculate this with Kepler's Third Law. "The square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit." This is valid for other orbiting objects; in this case you can replace "planet" with "satellite". Just assume, for simplicity, that the satellite orbits Earth in a circular orbit - in this case, the "semi-major axis" is equal to the distance from Earth's center. For your calculations, remember also that if the radius is doubled, the total distance the satellite travels is also doubled.
The heat produced in the conductor will increase four times when the current is doubled, as heat produced is directly proportional to the square of the current according to Joule's Law.
If the force acting on an object is doubled, the object's acceleration will also double according to Newton's second law (F = ma). Since inertia is the tendency of an object to resist changes in its motion, doubling the force will result in the object's inertia having a greater resistance to the change in acceleration.
If the force applied to an object is doubled, the pressure exerted on the object will also double. Pressure is directly proportional to force, so an increase in force will result in a proportional increase in pressure.
A rectangle has two dimensions - length and width. Only if both dimensions are doubled, then the perimeter will be doubled.
Since the perimeter is a linear measure it is also doubled.
If the population species of a given area is doubled,what effect would this have on the resources of the community?
The size of the country doubled
nothing
In the first case, the area will remain the same. In the second case, the area will doubled.
When all of the linear dimensions are doubled . . .-- the perimeter is also doubled-- the area is multiplied by 22 = 4.
effect on inertia of a body if force is double?
The area of the circle will be 4 times greater
it will cause a Short Circuit
you can cut a triangle directly
circular muscle