At which location would an object’s weight be the greatest? on pluto on earth on the sun on the moon

The correct answer to the question is the Sun i.e the weight of a body will be maximum on sun.

EXPLANATION:

The weight of a body is defined as the force with which a body is attracted towards the centre of a massive body like sun, planets.

Quantitatively weight of a body is defined as the product of mass with acceleration due to gravity.

Mathematically it can be written as weight w = m×g

Here, m is the mass of the body and g is the acceleration due to gravity.

The mass of a  body is a constant quantity for non relativistic situation.

Hence, the weight of a body is dependent on the acceleration due to gravity.

As per the options given in the question, the acceleration due to gravity is very large in case of a sun as compared to other celestial objects.

It is so because sun is very massive as compared to other planets.

The acceleration due to gravity is calculated as

Here, G is the the universal gravitational constant.

         M is the mass of of the planet or star.

         R is the radius of the planet or star.

Hence, it is obvious that the weight is maximum on sun.

hypothesising or postulating