List of top Nanoelectronics Questions on Digital Electronics and Logic Gates asked in CUET (PG)

The gates required to build a full adder are :

The longest wavelength that can be absorbed by silicon, which has the bandgap of \(1.12\) eV, is \(1.1\,\mu m\). If the longest wavelength that can be absorbed by another material is \(0.78\,\mu m\), then the bandgap of this material is :

The process of extension of a single-crystal surface by growing a film in such a way that the added atoms form a continuation of the single-crystal structure is called :

The uses of silicon dioxide in modern integrated circuit fabrication process :
• [A.] To serve as mask against diffusion of dopants into silicon
• [B.] To provide surface passivation
• [C.] To isolate one device from another device
• [D.] To act as a component in MOS structures
• [E.] To provide electrical isolation of multi-level metallization systems Choose the correct answer from the options given below :

The most fundamental physical principle that allows light to be transmitted along the optical fiber without significant loss :

The content of register (B) and register (C) of 8085 microprocessor are 0AFH and 0BH. It is desired to multiply the content of register B and register C and store the results in accumulator. A part of 8085 program for this purpose is given as : \[ \texttt{MVI A,00H} \] \[ \texttt{LOOP : _________} \] \[ \texttt{_________} \] \[ \texttt{_________} \] \[ \texttt{HLT} \] A sequence of instructions to complete the program would be :

The sequence of steps performed by microprocessor to fetch the data byte from memory :
• [A.] The byte is placed in the instruction decoder of the microprocessor.
• [B.] The byte from the memory location is placed on data bus.
• [C.] The control unit sends the control signal RD to enable the memory chip.
• [D.] Bus microprocessor places the 16-bit memory address from program counter on the address bus. Choose the correct answer from the options given below :

In the 8085 microprocessor, the RST6 instruction transfers the program execution to the following location :

The 8085 uses which technique for memory and I/O access ?

In a microprocessor, the register which holds the address of the next instruction to be fetched is :

If 8085 microprocessor adds 87H and 79H, then :

Sequence of steps for Boolean function simplification using K-map : A. Write truth table B. Plot minterms on K-map C. Group adjacent 1's D. Write simplified equation Choose the correct answer from the options given below :

Arrange the following logic families in the order of increasing power dissipation : A. CMOS B. RTL C. TTL D. ECL Choose the correct answer from the options given below :

Consider the Boolean function : \[ F=A+\bar{B}C \] Choose the correct minterm of given function : A. \(1,4 \text{ and } 6\) B. \(5 \text{ and } 7\) C. \(2,3 \text{ and } 7\) D. \(1,2,3 \text{ and } 4\) Choose the correct answer from the options given below :

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Master-slave J-K flip-flop is free from race around condition. Reason (R): Master-slave uses two J-K flip-flops. In the light of the above statements, choose the most appropriate answer from the options given below :

The number of flip-flops required to implement a MOD-31 counter are:

The product of maxterms for the given boolean function is: \[ Y = ab + a'c \] Choose the correct answer from the options given below:

Characteristic equation (\( Q_{next} \)) is provided for the different flip-flops:
(A) \( Q_{next} = S Q + R Q' \)
(B) \( Q_{next} = S Q' + R Q \)
(C) \( Q_{next} = T Q' + T' Q \)
Choose the correct answer from the options given below:

The output frequency for an 8-bit Johnson counter is ......... if the applied input frequency is 256 GHz.