Q1. Define friction ?
Q2. What is real and an apparent depth.
Q3. why do we regard muddy water as a suspension ?
Answers
Answer:
1)the rubbing of one surface or thing against another
2)Real depth is the actual depth from the surface whereas apparent depth is the depth which is visible to human eye this is due to refraction of light in different medium where object seems higher than it's position. 4.4.
3)Muddy water is a suspension. If the muddy water is kept undisturbed for some time, the mud settles down. Suspension is a heterogeneous mixture of particles from which the particles settle with time
Answer:
i know ans of only a part.
Explanation:
The force acting along the two surfaces in contact which opposes the motion of one object over the other is called friction.
Eg:- when u stop peddaling the bicycle it gradually slows down and finally comes to rest.This is due to force of friction
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