Question

solid have more density than liquid or gasses give reason
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Answer 1

Why are most solids more dense than liquids: This reason is because mostsolid are denser than liquid is because of the crystalline structure which is packed together giving it only space to most time vibrate.. So take a coins (solid) for example which is more dense than water therefore making it to sink..

Answer 2

Answer:

The image formed by the plane mirror is virtual and it is an optical image, but image formed by a pinhole camera is not an optical image i.e, it is not formed by reflection or refraction of the rays.

hope it help