SaraNextGen Study App [2023-24]
Last Updated On [03-11-2023]

Soap helps in cleaning clothes, because

 

(a)

chemical of soap change

(b)

it increases the surface tension of the solution

(c)

it absorbs the dirt

(d)

it lowers the surface tension of the solution


Question ID - 55439 :-

Soap helps in cleaning clothes, because

 

(a)

chemical of soap change

(b)

it increases the surface tension of the solution

(c)

it absorbs the dirt

(d)

it lowers the surface tension of the solution

1 Answer
5876 Votes
3537

Answer Key : (d) -

it lowers the surface tension of the solution



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The sides of a triangle  lie on the lines  and . let  be the centre of the circle inscribed in . The value of  equals


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