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electronics and communication engineering measurements and instrumentation
1. The time base of a high frequency CRO whose screen diameter is 10 cm is set at 10 μ sec/cm. The lowest frequency which can be fully displayed on the screen is
(A): equal to 10 kHz
(B): equal to 100 kHz
(C): less than 10 kHz
(D): more than 100 kHz
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