what is the meaning of "accepted value" with respect to an experimental measurement?

Accepted value means that the majority of reasonable folks will accept that value as true.

O thanks.. one more question

When brought to the surface of the moon, will a mass have more or less weight than it did on the surface of earth, or will it be the same weight?

Since gravity pull on the moon is less, then...

To determine whether a mass will have more or less weight on the surface of the moon compared to Earth, you need to consider the difference in gravitational pull between the two celestial bodies.

Gravity is what gives weight to an object. On Earth, the gravitational pull is much stronger compared to the moon. The accepted value for the acceleration due to gravity on Earth is approximately 9.8 meters per second squared (m/s^2). On the moon, however, the accepted value for the acceleration due to gravity is approximately 1.6 m/s^2.

Weight is calculated by multiplying the mass of an object by the acceleration due to gravity. So, if the mass of an object remains the same, but the acceleration due to gravity is different, the weight of the object will also be different.

In this case, since gravity pull on the moon is less, the weight of the mass will be less on the surface of the moon compared to the surface of the Earth.