4. How many images are formed when two plane mirrors face each other
5. How does pressure in liquids changes with liquid ?
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Ans 4 = six different images
With two plane mirrors oriented at a nearly 50 degree angle to one another, six different images are formed of an object.
Ans 5 = Pressure increases as the depth increases. The pressure in a liquid is due to the weight of the column of water above. Since the particles in a liquid are tightly packed, this pressure acts in all directions.
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