Multiple choice general knowledge

In 1877, Edison invented the first phonograph prototype. Tin foil was wrapped around the phonograph's grooved cylinder to produce the sound.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is false. In 1877, Edison invented the first phonograph prototype, but he used wax paper wrapped around the grooved cylinder, not tin foil. The tin foil version came slightly later as an improvement. The wax paper version could record and play back sound, but the quality was poor. Edison continued refining the design, eventually using tin foil and later wax cylinders for better sound reproduction.

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