What Sir Isaac Newton invented?
A. Reflecting telescope
B. Chronometer
C. Microscope
D. Spectacles
Answer: Option B
A. Reflecting telescope
B. Chronometer
C. Microscope
D. Spectacles
Answer: Option B
Who invented the ballpoint pen?
A. Biro Brothers
B. Waterman Brothers
C. Bicc Brothers
D. Write Brothers
In which decade was the first solid state integrated circuit demonstrated?
A. 1950s
B. 1960s
C. 1970s
D. 1980s
A. Pneumatic rubber tire
B. Automobile wheel rim
C. Rubber boot
D. Model airplanes
Which scientist discovered the radioactive element radium?
A. Isaac Newton
B. Albert Einstein
C. Benjamin Franklin
D. Marie Curie
Answer is reflecting telescope not chronometer
It will be reflecting telescope