Question

state the principle of sand clock ,waterclock ,sundial​

Answer 1

Answer:

The position of the shadow is utilized to mark the time of the day. Sand clock is made up of two rounded glass bulbs which are connected by a narrow neck of glass. It is based on the principle that sand from the upper glass bulb falls into the lower glass bulb in a fixed time so it became the unit of time

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Answer 2

Answer:

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Explanation:

Sand clock is made up of two rounded glass bulbs which are connected by a narrow neck of glass. It is based on the principle that sand from the upper glass bulb falls into the lower glass bulb in a fixed time so it became the unit of time.

Water clock is based on the principle of regulated flow of water.

The sundial works on the principle that when the sun is at highest point in the sky the image of an object formed by its light is smallest and when it is at the lowest point the image formed is the longest.