Which of the following parameters is included in the expression for radiation heat current? * O cross-sectional area O emissivity of the surface O temperature gradient O thermal resistivity
Q: Propagation Direction Electric Field (E) Magnetic Field (B) Wavelength=68.5 x10 m Calculate the…
A: λ=Wavelength=68.5×10−2 mv=Velocity of electromagnetic wave in a vacuum (Speed of light)=3×108 m/s
Q: Calculate the frequency of wavelength of electromagnetic radiation: 0.052 nm (wavelength contained…
A: The wavelength,
Q: The intensity of sunlight at the Earth's distance from the sun is 1370 W/m^2 a) Assume the Earth…
A:
Q: Which of these EM waves has the highest frequency? a. Gamma Rays b. Microwaves O c. Ultraviolet d.…
A: Answer: a. Gamma rays Explanation: The approximate frequencies of the given EM waves are given in…
Q: In which situation shown below will the electromagnetic wave be more successful in inducing a…
A: Since the wire is at rest ,the magnetic field can not induce any current.Hence the electric field is…
Q: Calculate the ratio of the highest to lowest frequencies of electromagnetic waves the eye can see,…
A:
Q: NASA’s Kepler Space Telescope is an orbiting observatory that searches for Earth-like planets…
A:
Q: Assume that a certain location on the Earth reflects 33.0% of the incident sunlight from its clouds…
A:
Q: Under what conditions might wires in a DC circuit emit electromagnetic waves?
A: The frequency of DC current is zero. Its value does not change with time. Therefore, it cannot…
Q: O Question 12 Which type of electromagnetic waves would be the best to use in an object designed to…
A: Gamma rays and infrared waves are the shortest wavelength rays are have ionizing properties
Q: Calculate the frequency for the electromagnetic wave shown in the picture
A: Given, wavelengthλ=685×10-2m
Q: Calculate the electric and magnetic fields produced by the radiation coming from a 100 W bulb at a…
A:
Q: Electromagnetic by wavelength. waves are not part of a spectrum and are categorized O True O False
A: False
Q: Question 9 Which of the following types of electromagnetic radiation travels the fastest? O All the…
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Q: Write True if the statement is correct, False if otherwise. Electromagnetic waves are categorized…
A: Electromagnetic waves are categorized into eight waves with different wavelengths. Answer: True…
Q: In radiation heat transfer mechanism, no medium is required for electromagnetic waves to transfer…
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Q: Which type of radiation has a slightly shorter wavelength and slightly higher frequency that visible…
A: Ultra-violet (UV) radiation is electromagnetic radiation having a wavelength shorter than that of…
Q: List the main types of electromagnetic waves in order öf increasing frequency. O radio waves,…
A: Make a table of the EM waves with their frequency as shown below:
Q: Electromagnetic waves with the longest wavelengths are a. gamma rays b. infrared С. x rays d. radio…
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Q: HOw will you compare the energy of electromagnetic waves and their wavelengths?
A: Given information: How the energy and wavelength of electromagnetic waves are compared.
Q: List in a table the energy, wavelength and frequency for the seven sub-regions of the visible…
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Q: Using your knowledge of radiation pressure, calculate the force of a laser beam striking a mirror…
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Q: What type of electromagnetic radiation is used in the remote control of a television? A) Ultraviolet…
A: We have to mention the type of electromagnetic radiation is used in the remote control of a…
Q: What is the relationship between the radiation intensity and the distance of the source?
A: Intensity obeys inverse square law ie intensity of radiation varies inversely with the square of…
Q: If a radiation source gives 75 units of radiation at a distance of 2.4 m, at what distance does the…
A: The radiation is inversely proportional to the square of the distance.
Q: How does the radiation pressure exerted on a black wall by a laser beam, compare to the radiation…
A: The formula for the radiation pressure exerted on the wall due to an incident laser beam is: The…
Q: Compute an order-of-magnitude estimate for the frequency of an electromagnetic wave with wavelength…
A: To find: An order-of-magnitude estimate for the frequency of an electromagnetic wave with wavelength…
Q: Compare and contrast the meaning of the prefix “micro” in the names of SI units in the term…
A: To determine: Comparing the meaning of the prefix “micro” in SI units in the term microwaves
Q: It is desired that the radiation energy emitted by a light source reach a maximum in the blue range…
A: Given data: The maximum wavelength of blue light is: λ= 0.47 μm The maximum standard value is:…
Q: What do bands of the electromagnetic spectrum have in common? They all have the same wavelength They…
A: Electromagnetic waves are transverse waves. The waves that propagate in a direction perpendicular to…
Q: Determine the wavelength of the infrared carrier wave transmitted by a television remote control at…
A: Given:- Frequency of the wave = 38 kHz = 38000 Hz
Q: Which type of electromagnetic radiation has the longest wavelength? A) UV rays B) Radio waves C) X…
A: In the electromagnetic spectrum, the electromagnetic radiation are broadly classified into 7 types.…
Q: an electromagnetic wave in a vacuum has a magnetic field amplitude of 217 nT. Calculate the…
A: Write the equation for magnitude of electric field. E=B×c Here, The intensity of the electrical…
Q: If you wish to detect details of the size of atoms (about 1 × 10-10 m ) with electromagnetic…
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Q: Suppose sunlight just outside Earth's atmosphere has an intensity of 1.76 kW/m2. Calculate (a) Em…
A: Data Given , Intensity of the sunlight ( I ) = 1.76 kw/m2 = 1.76 × 103 W/m2 Now , The intensity of…
Q: A certain radar installation that is used to track airplanes transmits electromagnetic radiation…
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Q: A radio wave transmits 44.0 W/m2 of power per unit area. A flat surface of area A is perpendicular…
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Q: Radiation heat transfer occurs in an object that should place in vacuum space. (True or False) False…
A:
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- What do you mean by temperature coefficient of resistivity?What is the observed relationship of the electrical parameters in step 6?(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) When clothes are removed from a hot dryer, they often cling together, but when two identical articles of clothing, such as two matched socks, are taken out, they usually repel one another. Explain this difference in behavior.
- (Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . Saltwater contains an equal number of positive and negative ions. When saltwater is flowing through a pipe, does it constitute an electric current?Integrated Concepts (a) Redo Exercise 20.25 taking into account the thermal expansion of the tungsten filament. You may assume a thermal expansion coefficient of 12 10-6/°C. (b) By what percentage does your answer differ from that in the example?Solve for the time it will take for an electric charge to travel through a 6 km copper conductor having a cross sectional area of 2.5 cm2. Also, what will be the drift velocity if you can measure 2 amperes flowing through the conductor.
- Assuming a 7W LED is 100% efficient at converting electricity into light and emits the same amount of light as a 60W incandescent lightbulb what is the efficiency of the 60W lightbulb?You evaporate liquid at a rate of 21 mg/s by placing a coil of Nichrome wire in it. You keep a current of 5.0 A running through the coil when the potential difference across is it is 12 V. What is the heat of vaporization of the liquid? Please show all equations that were used and a FBD if needed.You evaporate liquid at a rate of 21 mg/s by placing a coil of Nichrome wire in it. You keep a current of 5.0 A running through the coil when the potential difference across is it is 12 V. What is the heat of vaporization of the liquid? Please show a step by step process with equations and given units.
- In a Joule's Law experiment, the mechanical equivalent of heat is determined by using calorimetry methods to determine the amount of heat generated by an electric current passing through a resistor. What are the major sources of error? How could they be compensated for or eliminated?Why is platinum used for making resistance thermometer?What are advantages of heating effect of current?