Physics Inventions — Set 7
Inventions · भौतिकी के आविष्कार · Questions 61–70 of 70
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1
Who is known for inventing the first chemical battery?
2
The invention of the safety elevator belongs to?
3
Who invented the first practical wireless telegraph system?
4
The first modern internal combustion engine was developed by?
5
Who invented the gramophone used for playing records?
6
The invention of the stethoscope is credited to?
7
Who invented the first successful printing press in Europe?
8
The first practical mechanical clock was invented in which century?
9
Who invented the first laser device?
10
The invention of the telescope is most commonly associated with?