With the aid of a diagram, show how hollow cathode lamps operate. Why are hollow cathode...
With the aid of a diagram, show how hollow cathode lamps operate. Why are hollow cathode lamps used in preference to other radiation sources in AAS?
Homework Answers
Hollow Cathode Lamps are one the best source of spectral lines. Hollow Cathode Lamps is totally depended on the hollow cathode effect. The main idea behind the Hollow Cathode Effect is electrical conduction at a very lower voltage. Apart from HCLs, Hollow Cathode Effect gets used in neon sources as well.
Advantages of the use of Hollow Cathode Lamps:
- It has Better Lifetime compared to any other lamp sources
- It has better responses due to Low Noise.
- High Stability in the light output.
As well as it's price is relatively low.
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With the aid of a diagram, show how hollow cathode lamps
operate. Why are hollow cathode...
With the aid of a clearly labelled diagram, briefly, but informatively, describe a hollow cathode lamp...
With the aid of a clearly labelled diagram, briefly, but informatively, describe a hollow cathode lamp (HCL) commonly used in atomic adsorption spectroscopy (AAS) (b) What other source is used for AAS instead of HCL?
With the aid of a block diagram, show how an accelerometer can be used in the...
With the aid of a block diagram, show how an accelerometer can be used in the design of a measurement system. The block diagram should clearly show the sensing element, the required signal conditioning and signal processing elements.
With the aid of a suitable circuit diagram, show how shift registers can be used to generate the following repeating arbitrary code pattems (e) (2 Marks) (ii) ,2,4,12,4.. (2 Marks) (2 Marks) (2 Ma...
With the aid of a suitable circuit diagram, show how shift registers can be used to generate the following repeating arbitrary code pattems (e) (2 Marks) (ii) ,2,4,12,4.. (2 Marks) (2 Marks) (2 Marks)
With the aid of a suitable circuit diagram, show how shift registers can be used to generate the following repeating arbitrary code pattems (e) (2 Marks) (ii) ,2,4,12,4.. (2 Marks) (2 Marks) (2 Marks)
With the aid of a suitable diagram explain how a thin film of refractive index n...
With the aid of a suitable diagram explain how a thin film of refractive index n can be used as an anti-reflective coating on a glass lens with refractive index ng.
With the aid of a diagram explain how a monopolist determines how much output to produce...
With the aid of a diagram explain how a monopolist determines how much output to produce and what price to charge. (2) Briefly describe price discrimination of the first, second and third degrees. (3) Explain the difference between the demand curve facing a monopoly and the demand curve facing a perfectly competitive firm (4) Explain why under monopoly, price is greater than marginal revenue, while under perfect competition, price is equal to marginal revenue.
Hall effect: Describe the Hall effect with the aid of a neat, labelled diagram. What is...
Hall effect: Describe the Hall effect with the aid of a neat, labelled diagram. What is the significance of the Hall effect, how can it be used to characterise metals and semi- conductors? Show that the Hall voltage, Vh, is given by VH= VpBw where w is the width of the wafer of material, vp is the drift velocity of the charge carriers and B the perpendicular magnetic flux density.
(6) With the aid of an appropriate diagram, show that for Young's double slit experiment, y...
(6) With the aid of an appropriate diagram, show that for Young's double slit experiment, y = 2. D/a, where 2 is the wavelength of the source, a is the slit separation, D is the distance between the slits and the screen, and y is the separation between the central bright fringe and the first order fringe. (c) In Young's double slit experiment, the slit spacing was 0.56 mm and the distance across the four-fringe spacing was 3.6 mm when...
Question 2 a. With the aid of a diagram, explain why monopoly is regarded inefficient compared...
Question 2 a. With the aid of a diagram, explain why monopoly is regarded inefficient compared to perfectly competitive market. [5 marks b. hat are the FOUR (4) ways that government policymakers can respond to the problem of monopoly firm? 4 marks] c. What characteristics does monopolistic competition have in common with monopoly and perfect competition? 4 marks] d. How does the long-run equiibrium in monopolistic competition differ from the long-run equilibrium in perfect competition? Is the long-run equilibrium in...
1. In the housing market prices often are inflexible downward. Show in a supply/demand diagram how...
1. In the housing market prices often are inflexible downward. Show in a supply/demand diagram how this can lead to a surplus. 2. Given the following reservation prices, what price will maximize the quantity sold? Why? Bids to buy $20 $20 $20 $25 $30 $30 $30 $30 $35 $35 Bids to sell $15 $15 $20 $20 $25 $25 $25 $30 $30 $30 3. A friend says he expects to make money in the stock market using what he learned in...
Does someone know how to solve this please been answered before but been wrong and confusing...
Does someone know how to solve this please been answered before but
been wrong and confusing can you please help thanks!! PART B ONLY
PLEASE
(a) Explain the broad approach used in Revealed Preference Theory and how this differs from the neoclassical consumer approach. Your answer should include the Principle of Revealed Preference and the axioms of Revealed Preference Theory. [60% mark) (b) Mr. A: Shopkeeper: Mr. A: Mr. B: Mr. A: "Beer is 30p a bottle, isn't it? I...
With the aid of a clearly labelled diagram, briefly, but informatively, describe a hollow cathode lamp (HCL) commonly used in atomic adsorption spectroscopy (AAS) (b) What other source is used for AAS instead of HCL?
With the aid of a suitable circuit diagram, show how shift registers can be used to generate the following repeating arbitrary code pattems (e) (2 Marks) (ii) ,2,4,12,4.. (2 Marks) (2 Marks) (2 Marks)
With the aid of a suitable circuit diagram, show how shift registers can be used to generate the following repeating arbitrary code pattems (e) (2 Marks) (ii) ,2,4,12,4.. (2 Marks) (2 Marks) (2 Marks)
Hall effect: Describe the Hall effect with the aid of a neat, labelled diagram. What is the significance of the Hall effect, how can it be used to characterise metals and semi- conductors? Show that the Hall voltage, Vh, is given by VH= VpBw where w is the width of the wafer of material, vp is the drift velocity of the charge carriers and B the perpendicular magnetic flux density.
(6) With the aid of an appropriate diagram, show that for Young's double slit experiment, y = 2. D/a, where 2 is the wavelength of the source, a is the slit separation, D is the distance between the slits and the screen, and y is the separation between the central bright fringe and the first order fringe. (c) In Young's double slit experiment, the slit spacing was 0.56 mm and the distance across the four-fringe spacing was 3.6 mm when...
Question 2 a. With the aid of a diagram, explain why monopoly is regarded inefficient compared to perfectly competitive market. [5 marks b. hat are the FOUR (4) ways that government policymakers can respond to the problem of monopoly firm? 4 marks] c. What characteristics does monopolistic competition have in common with monopoly and perfect competition? 4 marks] d. How does the long-run equiibrium in monopolistic competition differ from the long-run equilibrium in perfect competition? Is the long-run equilibrium in...
1. In the housing market prices often are inflexible downward. Show in a supply/demand diagram how this can lead to a surplus. 2. Given the following reservation prices, what price will maximize the quantity sold? Why? Bids to buy $20 $20 $20 $25 $30 $30 $30 $30 $35 $35 Bids to sell $15 $15 $20 $20 $25 $25 $25 $30 $30 $30 3. A friend says he expects to make money in the stock market using what he learned in...
Does someone know how to solve this please been answered before but
been wrong and confusing can you please help thanks!! PART B ONLY
PLEASE
(a) Explain the broad approach used in Revealed Preference Theory and how this differs from the neoclassical consumer approach. Your answer should include the Principle of Revealed Preference and the axioms of Revealed Preference Theory. [60% mark) (b) Mr. A: Shopkeeper: Mr. A: Mr. B: Mr. A: "Beer is 30p a bottle, isn't it? I...
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