Who discovered the velocity of light?
- (A) Tesla
- (B) Roemer
- (C) Pascal
- (D) Huygens
- (B) Roemer
Who among the following invented the digit “0” (Zero)?
- (A) Aryabhatta
- (B) Grutsamad
- (C) Maharshi Charaka
- (D) Vagbhatta
- (A) Aryabhatta
Printing Press was invented by:
- (A) Graham Bell
- (B) James Watt
- (C) Johann Gutenberg
- (D) Martin Luther
- (C) Johann Gutenberg
Who discovered circulation of blood in the human body?
- (A) Edward Jenner
- (B) Joseph Lister
- (C) William Harvey
- (D) Louis Pasture
- (C) William Harvey
“Energy Quantum” was discovered by:
- (A) Neil Bohr
- (B) Max Planck
- (C) J.J. Thomson
- (D) Louis Bragg
- (B) Max Planck
Who discovered Atomic number?
- (A) Dalton
- (B) Rutherford
- (C) Bohr
- (D) H. Mosely
- (D) H. Mosely
Who was the inventor of positron?
- (A) Rutherford
- (B) J.J. Thomason
- (C) Chadwick
- (D) Anderson
- (D) Anderson
Piano was invented by an Italian named:
- (A) Hardy
- (B) James
- (C) Cristofori
- (D) Fleming
- (C) Cristofori
Who invented ‘X-rays’?
- (A) Baird
- (B) Roentgen
- (C) Chadwick
- (D) Fisher
- (B) Roentgen
Wireless telegraphy was invented by:
- (A) Marconi
- (B) Thomson
- (C) Samuel
- (D) Roentgen
- (A) Marconi