Question

explain Cavendish experiment to determine G

Answer 1

publishers history of gravitation in 1686 but it was not until a century later than and accurate experimental determination of G was made this is due to the reason that the value of G cannot be fined from the astronomical data alone
the only way to determine G is to perform an experiment to measure directly the gravitational force between two bodies whose masses are known as English chemist Henry Cavendish was the first to perform such an experiment in 1798
he used a sensitive type of balance called the torrentian balance
to find the force of attraction between two small let's play a, b each of mass 0.729 kg attached to the ends of suspended rod of length L and two largest stationary let's fear c and d each of mass 0.158 kg
first of all the spring constant of the torrentian fibre is determined
the deflection that is produced on bringing the larger spares near to smaller ones is determined by using the lamp and the scale arrangement
referring to force on each small prepares f =$G= \frac{mm}{ {r}^{2} }$
Where are is the separation between the large and the small space forces f, f acting on a and b form a couple well being the The arm of the couple
π= F×l = $G = \frac{Mm}{ {r}^{2} }$ ----------1
further π,k and theta are related to each other π= k theta ---------2

from equation 1and 2

$G = \frac{Mm}{ {r}^{2} } l = k \: theta \:$
since k,theta ,M,m and l are known ; G can be found out

hope it may help u

#be brainly

Answer 2

Once the torsional force balanced the gravitational force, the rod and spheres came to rest and Cavendish was able to determine the gravitational force.