question_answer

To get an output of 1 from the circuit shown in figure the input must be :   JEE Main Online Paper (Held On 10 April 2016)

A) =1, b =1, c = 0                       

B) a = 1, b =0, c = 0                

C) a =0, b = 0, c = 1                   

D) a =1, b =0, c = 1

Correct Answer: D

Solution :

             Checking options one by one We must note that c = 1 and output of OR gate must also be 1 therefore