Question

A beaker half-filled with water is put on a
platform balance which is then set to zero. A
800 g mass is immersed partially in water using
a spring balance as shown in the figure. If the
spring balance reads 300 g.
reading on the platform balance?
at will be the

Answer 1

Given,
Reading of spring balance = 300g

Actual weight = 800g

Here, weight on platform balance = buoyant force
= Actual weight - Reading on spring balance
= 800-300 = 500g

Answer 2

500g is the answer key