✅ Correct Answer: Galileo Galilei
Source: This question is taken from the Everyday Science
✅ Correct Answer: Alessandro volta
✅ Correct Answer: Walter Hunt
✅ Correct Answer: Archimedes
✅ Correct Answer: A primary and A secondary mirror
✅ Correct Answer: Two lenses
✅ Correct Answer: Dark matter does not interact with electromagnetic force
✅ Correct Answer: 5
✅ Correct Answer: Uranus
✅ Correct Answer: Robert Fluton
✅ Correct Answer: Montgolfier
✅ Correct Answer: A primary lens and A secondary lens