Question

Among the following devices, which device didn’t use to measure time in ancient time?
A. candle clock
B. hourglass
C. clepsydra
D. analogue watch

Answer 1

Hint: An analog watch is defined to be a watch which is having a display with a traditional clock face. It is not having a digital display. These kinds of watches are being used up nowadays also. This is considered somewhat as a modern invention.

Complete step-by-step answer:
A candle clock is defined as a thin candle which has a uniform spacing marking that when burned, makes the sense of the passage of periods of time. These are not in use nowadays. These clocks at ancient times were useful to measure the time effectively indoors, at night, or on a cloudy day. An hourglass is also an ancient period device helpful in measuring the period of time. It includes two glass bulbs connected vertically using a narrow neck that permits the flow of materials like sand from the upper bulb to the lower one. A clepsydra is a time measuring device using which time is calculated by the flow of liquid in and out from a vessel. This amount is measured later. They are also known as water clocks. They are considered to be one of the oldest time measuring devices.
Therefore from this we can understand that the analog watch is the only thing which was not prevailing in the ancient period of time. Therefore the correct answer is option D.

So, the correct answer is “Option D”.

Note: In a candle clock the wax is collected in the indentation and this should be removed periodically. Thus the wax will not interfere with constant burning. The bottom of the candle is fixed in a shallow dish which has a ring on its side connected by the use of pulleys in order to counterweight. When the candle burns away, the weight will push it upward at a fixed speed.