1200g
1000g
800g
400g
Correct answer is C
Mass = density x volume
400 x 2.5 = 1000g
Loss in mass = volume x density
= 4002 x 1 = 200g
Reading on spring balance = 1000 - 200g = 800g
Which of the following substances lowers the surface tension of water?
metal
sand
detergent
paper
Correct answer is C
No explanation has been provided for this answer.