List of top Questions asked in CUET (PG)

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 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 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 :

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 :

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 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 :

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

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 :

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 :

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 :

The electric field of an electromagnetic wave propagating in the positive \(z\)-direction is given by : \[ \vec{E}=\hat{a}_x \sin(\omega t-\beta z)+\hat{a}_y \sin\left(\omega t-\beta z+\frac{\pi}{2}\right) \] The wave is :

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 :

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Net charge within a conductor is always zero. Reason (R): The conductor has a very large number of free electrons. In the light of the above statements, choose the most appropriate answer from the options given below :

Consider the following statements associated with two-port reciprocal networks : A. \[ Z_{12}=Z_{21} \] B. \[ Y_{12}=Y_{21} \] C. \[ h_{12}=h_{21} \] D. \[ AD-BC=1 \] Choose the correct answer from the options given below :