(a) The first reference to sand glass in Afghanistan seems to occur in Mir Khwand's Rauzat-us Safa.
(b) By the 16th century the sand glasses in use in India were so made as to show the Indian measure of time (ghari).
(c) The sand glass begins to be shown in Mughal miniatures from Akbar's time onwards.
(d) Ramchandra's Yantra Prakasha and Jnanaraja's Sundara Siddhanta refer to sand-clock.
Select the correct answer from the code given below :
Sand Glass Historical References
This question evaluates knowledge about the historical occurrences and documentation of sand glasses (also known as hour glasses).
Statement Accuracy Check
- Statement (a): It is noted that the text Rauzat-us Safa by Mir Khwand contains an early mention of sand glass in Afghanistan. This statement is factual.
- Statement (b): This statement claims that by the 16th century, Indian sand glasses were adapted to measure the Indian time unit, the 'ghari'. This statement is considered inaccurate.
- Statement (c): The appearance of sand glasses in Mughal miniatures is documented to commence from the reign of Emperor Akbar onwards. This statement is factual.
- Statement (d): The sand-clock is referenced in specific historical Indian texts, including Ramchandra's Yantra Prakasha and Jnanaraja's Sundara Siddhanta. This statement is factual.
Selecting the Correct Combination
Based on the analysis, statements (a), (c), and (d) are true. Therefore, the correct combination includes these three points.
Important Questions from Developments in Science Technology
- Who was the first Mathematician to calculate the correct value of pi ($\pi$) ?
- 3101 B.C. as the date of Mahabharata war is mentioned in which of the following inscriptions ?
- Arrange the following astronomers in the chronological order :
(a) Bhaskaracharya (b) Bhoja (c) Brahmagupta (d) Varahamihira
Select the correct answer from the code given below : - Below are the two statements : One labelled as Assertion (A) and the other as Reason (R) :
Assertion (A) : There were many good reasons for avoiding technological innovation or any form of mechanization of Indian manufactures in medieval India.
Reason (R) : As any innovation implied a measure of risk and some investment of capital, the Indian workman living on the margin of subsistence had hardly any means to undertake it. In such a situation only a limited technological innovation initiated by the state or by the profit-seeking merchant could be expected.
Code : - The Huna king Mihirakula was defeated by whom amongst the following :
