Who was first practical fluorescent lamp was invented in 1941?

(Click on suggested Options to select the answer \| Color Red means : Wrong & Green Means: Correct)
Who was first practical fluorescent lamp was invented in 1941? A. George Inman B. Johann Puch C. Max Valier D. Josef Ressel Check Answer Complaint Here As Incorrect Question / Answer

Related Questions Who invented the first commercially successful and practical incandescent lamp in 1879? A. Madam Emaro B. Thomas Edison C. Humphry Davy D. Thomas Adams Check Answer Complaint Here As Incorrect Question / Answer Which invented the Electric Lamp ? A. Thomas Alva Edison B. Charles Townes C. Anthony Fire D. Leroy Hood Check Answer Complaint Here As Incorrect Question / Answer Which invented the Neon Lamp ? A. Georges Claude B. Euclid C. Heitz D. J.C. Perier Check Answer Complaint Here As Incorrect Question / Answer Biro Brothers made a practical design of which pen to help in quality writing? A. Ballpoint Pen B. Fountain Pen C. Ink Pen D. Gel Pen Check Answer Complaint Here As Incorrect Question / Answer Who is known as the 'Lady with the Lamp'? A. Florence Nightingale B. Sarojini Naidu C. Indira Gandhi D. Joan of Arc Check Answer Complaint Here As Incorrect Question / Answer

Related Questions