Wave your hand back and forth between your face and a fluorescent light bulb. Do you observe the same thing with the headlights on your car? Explain what you observe. Warning: Do not look directly at very bright light.

Q: Fill the blank spaces for the list of properties of the Electromagnetic waves given below: 1) EM…

A: 1) EM waves are the combination of electric and magnetic waves that are produced by accelerated…

Q: During a brown-out, the electric power company drops the voltage of the power line and the…

A: When the Voltage drops the current flow will also decrease, Which implies in the change in power…

Q: When a bowl of soup is removed from a microwave oven, the soup is found to be steaming hot, whereas…

A: The microwave induces polar molecules in the food to rotate and produce thermal energy. Soup has…

Q: Why do astronauts use radios while talking to one another in outer space?

A: Astronauts use radios while talking to one another in outer space.

Q: Security threads have been added to Canadian bills to help detect counterfeit money. These threads…

A: Wavelength emitted = 390 nm to 565 nm

Q: A photocell with a 35-ms time constant is used to measure light flashes. How long after a sudden…

A: In the given question, We have to determine the required time.

Q: Distinguish between fast and slow frequency hopping spread spectrum with a suitable example in…

A: Slow frequency hopping Slow frequency hopping is used to minimize the effects of interference from…

Q: Fill the blank spaces for the list of properties of the Electromagnetic waves given below: 1) EM…

A: Fill in the blanks related to electromagnetic waves .

Q: Fluorescent lights tend to emit less of what color?

A: A Fluorescent tube is a low pressure mercury vapour gas discharge lamb that used the property of…

Q: An important news announcement is transmitted by radio waves to people who are 85 km away, sitting…

A: important news announcement is transmitted by radio waves to people who are 85 km away, sitting next…

Q: A charge of 4.00 C of charge passes through a pocket calculator’s solar cells in 4.00 h. What is the…

A: Charge, q = 4 C time, t =  4 h Voltage, V = 3 V

Q: Direction: Write the word TRUE if the statement is correct. If the statement is false, write the…

A: Hertz produced and detected electromagnetic waves with wavelengths of a few metres(macroscopic) in…

Q: Unpolarized light with an initial intensity of 5 W/m2 is received by a polarizer, followed by an…

A: Given initial intensity Io = 5 W/m2 . angle of polarizer θ = 750. we know transmitted intensity and…

Q: A stereo system picks up radio waves traveling from a transmitting tower. The stereo turns this…

A: The radio and inferred waves travels with the speed of the light. The speed of the light is 3×108…

Q: In your own words, describe how microwaves are used to heat food. Microwaves have wavelengths…

A:

Q: Light which is unpolarised Iu move towards a number of polarisers. It goes through the first…

A:

Q: discuss what is an electromagnetic waves. Site also at least three examples.

A: An electromagnetic wave or em wave is a wave in which the electric field and magnetic field are…

Q: A radio station broadcasts at 650 kHz (650,000 cycles per sec).  What is the wavelength of this…

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Q: 1. Three arms of a redstone bridge contains resistors of known value that have a limiting error of…

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Q: 20 Write the name of the appropriate electromagnetic wave from Longest to shortest wave. Use the…

A: As it a multiple questions, I answer first three questions. Please resubmit the…

Q: How do fluorescent soap residues make clothing look “brighter and whiter” in outdoor light? Would…

A: Outdoor light is mainly the sunlight coming from the sun. When the fluorescent soap residues expose…

Q: Unpolarized light is sent through a polarizer with its polarization axis vertical.

A: We have to use the Malus's law

Q: A students were at a graduation party in one student's back yard. The star of the basketball teamwho…

A: The total voltage is drawn through the circuit of the party lights is the integer multiple of the…

Q: To keep chickens warm in a chicken coop, why would a CFL be a poor choice compared with an…

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Q: Make a list of some everyday objects and decide whether they are transparent or opaque to each of…

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Q: Suppose a 490 nm wavelength of light enters your eyes, what receptors in retina of your eyes will be…

A: Range of blue color wavelength: 440 nm to 490 nm Range of green color wavelength: 490 nm to 570 nm…

Q: What is the difference between a light wave and a microwave?

A: Light wave or visible light and microwave are electromagnetic waves. Both of them travel with the…

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: "Light waves"

A:

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: At what frequency does LED light flicker become unnoticeable?

A:

Q: What will happened if you hold a polarized sunglass in front of you and rotate them. While looking…

A: Given;- What will happened if you hold a polarized sunglass in front of you and rotate them. While…

Q: Fill the blank spaces for the list of properties of the Electromagnetic waves given below: 1) EM…

A: 1) Electro magnetic waves are created or produced by oscillating charges (which radiates whenever…

Q: FIll the biank spaces for the list of properties of the Electromagnetic waves given below: waves,…

A: The electromagnetic waves are waves that contains both electric and magnetic fields and are produced…

Q: 11:33 moodle.nct.edu.om Question 9 Not yet answered Marked out of 1.00 Flag question Which of these…

A:

Q: A cell phone wrapped in metal foil is observed to not be able to get a signal and ring when called.…

A: The metal foils block the signal and waves and keeps cell phone in isolation from any radio and…

Q: Illustrate that the size of details of an object that can be detected with electromagnetic waves is…

A: There are several types of Electromagnetic waves in spectrum that are characterized by associated…

Q: Fill the blank spaces for the list of properties of the Electromagnetic waves given below: 1) EM…

A: 1) Oscillating charges; 2) Perpendicular