General Science · Inventions and Discoveries
जे. जानसेन द्वारा कंपाउंड माइक्रोस्कोप का आविष्कार पारंपरिक रूप से किस वर्ष के आसपास माना जाता है?
- 11590✓
- 21610
- 31665
- 41550
सही उत्तर देखें
1590
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Preparing for General Science?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Inventions and Discoveries?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in General Science · Inventions and Discoveries