(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 :
This question evaluates knowledge about the historical occurrences and documentation of sand glasses (also known as hour glasses).
Based on the analysis, statements (a), (c), and (d) are true. Therefore, the correct combination includes these three points.
Which of the following wasnotdiscovered by Aryabhatta?
Who established on January 15, 1876, the Indian Association for the Cultivation of Science in Calcutta?
What is the typical magnetic field strength of magnets present in MRI machines used in medical applications?