Physics · Surface Tension
How does the addition of soap or detergent affect the surface tension of water, and how does it influence its cleaning action?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1It has no effect on surface tension but increases the density of water to lift dirt.
- 2It increases the surface tension, causing water to form tighter droplets that trap dirt.
- 3It decreases the surface tension, allowing the water to spread better and penetrate deep into fabrics.✓
- 4It increases the surface tension, reducing the water's ability to wet dirt particles.
Correct answer
It decreases the surface tension, allowing the water to spread better and penetrate deep into fabrics.
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