List of top Questions asked in CUET (PG)- 2026

Which sensor characteristic describes its ability to selectively detect a specific analyte without interference from other substances in the sample ?
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 energy-momentum (E-K) relationship in a crystalline solid is usually obtained by solving :
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 :

Match List - I with List - II.

List - IList - II
A. Address bus
B. Data bus
C. Control bus
D. Tristate logic		I. Carries read/write signals, timing signals, and interrupt signals
II. A three-state output that can be high, low, or high-impedance
III. Unidirectional lines used by CPU to point to a memory location or I/O device
IV. Bidirectional lines used for transferring data between CPU and memory

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

Match List - I with List - II.

List - IList - II
A. Immediate Addressing
B. Register Addressing
C. Direct Addressing
D. Indirect Addressing		I. \texttt{LDAX B}
II. \texttt{OUT 01H}
III. \texttt{MVI B,37H}
IV. \texttt{MOV A,B}

Match List - I with List - II.

List - IList - II
A. ROM
B. EPROM
C. EEPROM
D. SRAM		I. Volatile, Fast, Expensive
II. UV erasable
III. Electrically erasable
IV. Non-Volatile, permanent data

In 8085 microprocessor, which of the following are 2-byte instructions ?
• [A.] MOV C, A
• [B.] MVI A, 32H
• [C.] LDA 2050H
• [D.] JMP 2085H
• [E.] ADD B Choose the correct answer from the options given below :
Sequence of steps in 8085 microprocessor interrupt execution :
• [A.] Interrupt acknowledged
• [B.] Program content saved
• [C.] Control transferred to ISR
• [D.] Interrupt vector is read Choose the correct answer from the options given below :
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 :
Consider the following statements regarding the 8085 microprocessor :
• [A.] The 8085 is an 8-bit microprocessor.
• [B.] It has a 16-bit address bus, allowing it to access 64 KB of memory.
• [C.] It has 40 pins.
• [D.] It uses a multiplexed address/data bus. Choose the correct answer from the options given below :
The 8085 uses which technique for memory and I/O access ?

Match List - I with List - II (Value of reflection coefficient).

List - IList - II
A. Short circuit
B. Open circuit
C. Line characteristic impedance
D. 2 times of line characteristic impedance		I. 0
II. -1
III. +1
IV. +\dfrac{1}{3}

In the 8085 microprocessor, the RST6 instruction transfers the program execution to the following location :
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 :
Correct sequence of electromagnetic radiation in order of increasing frequency.
• [A.] Microwave
• [B.] Radio wave
• [C.] Visible light
• [D.] X-ray
• [E.] Gamma rays Choose the correct answer from the options given below :

Match List - I with List - II.

List - IList - II
A. \(\nabla \cdot \vec{D}=\rho\)
B. \(\nabla \cdot \vec{B}=0\)
C. \(\nabla \times \vec{E}=-\dfrac{\partial \vec{B}}{\partial t}\)
D. \(\nabla \times \vec{H}=\vec{J}+\dfrac{\partial \vec{D}}{\partial t}\)		I. Faraday's law of electromagnetic induction
II. Ampere-Maxwell law
III. Absence of magnetic monopoles
IV. Gauss's law of electricity

Consider the following statements regarding a plane wave propagating through free space. The direction of field :
• [A.] \(\vec{E}\) is perpendicular to the direction of propagation.
• [B.] \(\vec{H}\) is perpendicular to the direction of propagation.
• [C.] \(\vec{E}\) is perpendicular to the direction of field \(\vec{H}\). 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): Time varying electric field produces magnetic fields. Reason (R): Time varying magnetic field produces electric fields. In the light of the above statements, choose the most appropriate answer from the options given below :
Coulomb's law states that the force between two point charges \(Q_1\) and \(Q_2\) is :
• [A.] Along the line joining them.
• [B.] Directly proportional to the product of charges \(Q_1\) and \(Q_2\).
• [C.] Inversely proportional to the distance \(R\) between them.
• [D.] Inversely proportional to the square of distance \(R\) between them. Choose the correct answer from the options given below :
Medium 1 has the electrical permittivity \(\epsilon_1=1.5\) farad/m and occupies the region to the left of \(x=0\) plane. Medium 2 has the electrical permittivity \(\epsilon_2=2.5\) farad/m and occupies the region to the right of \(x=0\) plane. If in medium 1 \[ \vec{E}_1=(2u_x-3u_y+1u_z)\ \text{Volt/m} \] then \(\vec{E}_2\) in medium 2 is :
A TEM wave impinges obliquely on a dielectric-dielectric boundary with \(\epsilon_{r1}=2\) and \(\epsilon_{r2}=1\). The angle of incidence for total reflection is :