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HomePhysics3. The surface tension of soap solution is

3. The surface tension of soap solution is

25 x 10-3 Nm-1 .  The excess pressure inside a soap bubble of diameter 1 cm is           

(a)   10 Pa                                        

(b)  20 Pa

(c)   5 Pa                                  

(d)  None of the above

Ans. b

(10)

5/5 - (2 votes)

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12. An ideal gas is taken through the cycle A→ B → C → A, as shown in the figure. If the net heat supplied to the gas in the cycle is 5 J, the work done by the gas in the process C → A is

(a)      – 5 J (b)  – 10 J (c)   – 15 J (d)  – 20 J Answer-a (126)

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