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प्रश्न
Which of the following is/are true for cathode ray
पर्याय
They travel in straight line.
They have kinetic energy.
They produced fluoresce with certain substance
They are electromagnetic waves.
MCQ
उत्तर
They travel in straight line.
Explanation:
Cathode rays cast shadows on obstacles in their path, indicating that they are travelling in a straight line. They also produce light when they strike a fluorescent material.
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