Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-fact-Easy-Class 12
What is the primary reason semiconductor devices do not require an external vacuum like vacuum tubes?
A
They operate within the solid material itself.
B
They require high temperatures to function.
C
They have multiple electrodes that need space.
D
They generate more heat than vacuum tubes.
Correct Answer
Option A
Detailed Explanation
Semiconductor devices operate within the solid material itself, which eliminates the need for an external vacuum, unlike vacuum tubes that require a vacuum to prevent energy loss from colliding with air molecules.
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