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Explain Fresnel’s biprism method and explain how it is used for the determination of wavelength of light. With the mathematical treatment, analyse the Fresnel diffraction at a circular aperture.
What do you understand by Brewster angle. What is the effect of temperature on the velocity of sound? Explain the formation of Newton’s rings. Write a detailed note on energy and loudness level
Give the theory of a moving coil ballistic galvanometer. Describe in detail the damping correction. Explain the principle and working of a transformer.
What is the difference between Peltier effect and Joule heating effect? Explain Curie temperature in detail. Define intensity of magnetisation. Define the condition for a moving coil galvanometer to b
Describe the barkhausen criterion. Describe the basic concept of function generator. How is the zener diode used as a voltage regulator? Describe its circuit and theory.
Write down any two differences between Hartley’s and Collpit’s oscillators. Write down the principle of oscillators. Differentiate between amplifiers and oscillators. Write any two charact
Write down the truth table of a half subtractor. Draw the R-S flip flop circuit, using NAND gates. What are ripple counters? Describe the term resolution?
Explain the film method of determining the thermal conductivity of a liquid. Define entropy. Describe the change of entropy in Carnot’s cycle. Describe the function of refrigeration.
Write down two drawbacks of Forbe’s method of finding thermal conductivity of a solid. State first law of thermodynamics. Explain in detail about the principle of refrigeration.
Explain the different sections of a CRO and the function of vertical and horizontal deflection systems. Explain with circuit diagram the function of pulse and square wave generator.
Draw the pin configuration of PPI chip 8255. Demonstrate interface connections are to measure and control temperature employing a microprocessor-based system. Draw the pin configuration of 8085 and de
Describe the uses of Yagi-Uda antenna. Give the mathematical description of FM methods and describe how FM is achieved indirectly.
With a logic diagram and truth table, describe the Half Subtractor circuit. What in an encoder? Describe its working. Write a short note on A/D accuracy and resolution.
Sketch the astable multivibrator circuit and describe its operation. Deduce the expression for time period of oscillation.
What do you mean by co-efficient of coupling? Write the expression for the co-efficient of coupling between two coils.
Design the circuit diagram of 4-bit universal shift register. What is ripple and synchronous counter? Describe with suitable example.
Draw and describe carry look ahead generator. What is mealy and moore model? Construct JK flipflop using D flipflop, 2 to 1 line mux and inverter.
Design a four input priority encoder With a circuit diagram, describe the working of a D flip flop with a direct reset input.
The output from the VI will be of the type Analogue Waveform and be capable of being displayed on an appropriate Waveform Graph.
A solar thermal salesman heard about the Rusk’s solar PV system and decided to convince them to use part of their roof for solar thermal instead of solar PV.
Assume this system will be mounted on the roof. How big will the area of solar collector be? Is this a reasonable size for a house (i.e. are roofs actually this big)?
Derive probability of error for Binary Phase shift Keying modulation and relate it with Q function. Plot the constellation diagram. Describe the transmitter and Receiver section of BPSK.
Explain Tonomura experiment to prove wave-particle duality of matter. Explain the electron motion in a 1D potential well of penetrable walls and having finite potential walls.
State four micro actuation mechanisms. How piezo materials and their mechanisms are used to effect micro actuations.
With neat sketches, describe the basic types of lighting arrangement suitable for two-way traffic roads and dual carriage ways.