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After the display is selected by second port, then the digit (LED) glows for a duration of

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After the display is selected by second port, then the digit (LED) glows for a duration of

(a) 5 msec

(b) 10 msec

(c) 2 msec

(d) 6 msec

I got this question by my college professor while I was bunking the class.

I'd like to ask this question from Interfacing With 8051 Ports -2 topic in portion Microcontroller 8051 of Microprocessor

1 Answer

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by (49.2k points)
Right option is (a) 5 msec

Explanation: The unit(LED) glows for a duration of 5 msec.

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