English MCQs

When Alumina placed in path of cathode rays, it glows?

Photo of Rooshaf Saleh Rooshaf Saleh Send an email 3 weeks ago
0 0 Less than a minute

When Alumina placed in path of cathode rays, it glows?

  1. Black
  2. Green
  3. Blue
  4. Red

THE CORRECT ANSWER IS: Black

Photo of Rooshaf Saleh Rooshaf Saleh Send an email 3 weeks ago
0 0 Less than a minute
Photo of Rooshaf Saleh

Rooshaf Saleh

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