(a) State two factors on which surface tension depends.
(b) How can mosquito larvae be made to sink in stagnant water?
Verified Correct Answer: .
Physical Principles & Numerical Solution
(a)(i) Purity of liquid
(ii) Temperature of liquid
(iii) Nature / type of liquid.
(b) Mosquito larvae can be made to sink by the addition of any of;
(i) Detergent / Soap
(ii) Alcohol
(iii) Heat
(iv) Camphor .
Source: Myschool Past Questions Archive (Record #52885)