Lense Formula MCQ (Multiple Choice Questions) PDF - 137

MCQ 681: Lens formula was discovered by a second Astronomer in Britain named as

1. Sir Nickolaus August Otto
2. Sir Thedore Maiman
3. Sir Edmund Halley
4. Sir Steven Sasson

MCQ 682: Chemical foam extinguisher was invented by a Russian teacher named as

1. Sir Aleksandr Loran
2. Sir Elie Franklin Burton
3. Sir Cecil Hall
4. Dr John A. Hopps

MCQ 683: The motor vehicle was invented by a German Engine designer named as

1. Sir Thomas Edison
2. Sir Karl Benz
3. Elias Howe
4. Sir Josip Belusic

MCQ 684: Mural instruments were invented by a Muslim scholar named as

1. Muhammad ibn Musa
2. Muhammad ibn Musa al-Khwazirzmi
3. Ibn-al Haytham
4. Sind ibn Ali

MCQ 685: In which one of the following countries, gunpowder was invented?

1. America
2. China
3. Germany
4. London