Q: 100 (NDA-II/2009)


Assertion (A) : On a wet floor of a bathroom, a small circular area around a pinch of foam appears to be dry.
Reason (R) : Soap molecules reduce surface tension and increase surface area of the thin layer of water on the wet floor.
question_subject: 
Science
question_year: 
2009
question_exam: 
NDA-II
stats: 
0,632,136,632,72,48,16