On a radar, the time interval between the sent and the received radio pulse reflected from plane, is 15 microseconds. How far is the plane? The speed of the radio pulse is 300,000 km/s.

Q: A blackbody radiator in the shape of a sphere has a surface area of 15 ^ 2 * m . if it has a…

A: Given data: Surface area of the blackbody, A = 152 m2  Temperature of the blackbody, T = 1200 K

Q: The hottest ordinary star in our galaxy has a surface temperature of 53,000 K. What is the peak…

A: Using to the Wein's displacement law, λmax=2.8977×106nmKT

Q: To manufacture an antenna that operates at a frequency of 10GHZ, its dimensions are within. О З ст О…

A: The dimension of antenna should be directly proportional to wavelength.  Again, Wavelengthλ = Speed…

Q: A radio transmitter broadcasts at a frequency of 155kHz. What is the wavelength of the wave? ( speed…

A:

Q: The wavelength of a radio wave from an AM station broadcasting at 1,000 kilohertz on your radio dial…

A: Given data *The given frequency is f = 1000 kHz = 10 × 105 Hz *The given wavelength is λ=300 m

Q: How many meters are in a light year?

A:

Q: A boat takes 3.00 hourshours to travel 50.0 kmkm down a river, then 6.10 hourshours to return. How…

A:

Q: Radio waves travel at the speed of light, 300,000 km/s. The wavelength of a radio wave received at…

A: Given data: Speed (v) = 300,000 km/s Frequency (f) = 100 MHz Required: Wavelength (λ)

Q: If an electromagnetic wave has a frequency of 1.5 × 1010 s-1, it falls in the ______ region of the…

A: The frequency and wavelength of an electromagnetic wave in free space are related as c=νλc is the…

Q: The intensity of light from a central source varies inversely as the square of the distance. If you…

A:

Q: A highway patrol officer uses a device that measures the speed of vehicles by bouncing radar off…

A: Given The outgoing radar has a frequency of Fs  =95GHz and the returning echo. Speed of the light…

Q: A radio transmitter broadcasts at a frequency of 172kHz. What is the wavelength of the wave? ( speed…

A:

Q: The dial on an FM radio contains numbers ranging from about 88 to about 108. These numbers…

A: Given data The initial frequency of the FM radio is given as f1 = 88 Hz. The final frequency of the…

Q: How long does it take a radio signal (an electromagnetic wave) to travel from Hartford…

A: Velocity is, All electromagnetic waves travel with same velocity in air. It is 3.0×108 m/s.

Q: What is the wavelength of light if its frequency is 3.2 x 1014 hz?

A: Given data- frequency of light f=3.2 x 1014 hz

Q: an AM radio station is operating at 990k Hz what is the wavelength and energy of the frequency?

A:

Q: How long does it take a radio signal to travel from New York to San Francisco, about 5000 km?

A:

Q: A blackbody radiator in the shape of a sphere has a surface area of 1.3. If the temperature of the…

A: Hey there, I have taken all the values in S.I units, since no units are mentioned in the problem.…

Q: What is the speed of light in miles per second?

A:

Q: How fast are the protons going now?

A:

Q: If an electromagnetic wave has a frequency of 200 Megahertz (MHz), what is its wavelength

A: Given that the frequency of an electromagnetic wave is 200 megahertz (MHz).Write the expression for…

Q: The speed of light is 300,000,000m/s. What is the frequency of microwaves with a wavelength of 175…

A: The solution is as follows:-

Q: what is the frequency of a light of wavelength 7.4 x 10^-7 m?

A: Given:wavelength=7.4x10-7 mFind the frequency of a light.Now,Wavelength is related to frequency…

Q: A radio transmitter broadcasts at a frequency of 143kHz. What is the wavelength of the wave? ( speed…

A:

Q: What is the speed of light in miles per hour?

A:

Q: What is the wavelength of a radio wave from an FM station that broadcasts at a frequency of 95500000…

A: The given values are, f=95500000 Hzv=3.00×108 m/s

Q: What is the wavelength (in meters) for a radio wave of frequency 210.0 MHz?

A: A radio wave is an electromagnetic wave, the EM wave's frequency and wavelength is related by…

Q: radio transmitter broadcasts at a frequency of 139kHz. What is the wavelength of the wave? ( speed…

A: Frequency = 139 kHz   = 139000 Hz  Speed of light = 3 × 108 m/s

Q: What is the wavelength of radio waves transmitted by a radio station with a frequency of 1360…

A:

Q: How long (in seconds) will it take a radio signal to travel 3.08 x1010 m through space?

A: The distance traveled by the signal is, d=3.08×1010 m The speed of a radio signal is, v=3×108 m/s

Q: What is the wavelength of a light wave with a frequency of 16 GHz?

A:

Q: If a light source is located 12 m away from an area, how much of the area is illuminated

A: It is known that the light source is located r=12m away from the area.

Q: The wavelength of a radio wave varies inversely as its frequency. A wave witha frequency of 1200…

A:

Q: What is the wavelength of a radio wave of a frequency 100 MHz?

A:

Q: what is the frequency of a radio wave with a wavelength of 2.2 m?

A: Given data: Wavelength of a radio wave (λ) = 2.2 m Required: Frequency (f)

Q: If a radio wave has speed 3.00 × 10 8 m/s and frequency 99.7 MHz, what is its wavelength?

A: Given information:The speed of the radio wave (v) = 3 × 108 m/sThe frequency of the wave (f) = 99.7…

Q: A radio transmitter broadcasts at a frequency of 142kHz. What is the wavelength of the wave?

A:

Q: Light travels a distance of about 3 × 108 m/s. A light-minute is the distance light travels in 1…

A:

Q: The speed of lights 300,000,00 m/s. What is the frequency of microwaves with a wavelength of 775…

A:

Q: A radio transmitter broadcasts at a frequency of 127kHz. What is the wavelength of the wave? ( speed…

A: As we know the relation between the velocity of wave , frequency & wavelength as following.  v…

Q: The speed of light (and radio waves) is 300,000 km/s.  What is the wavelength (in meters) of a radio…

A: Given,speed of the light, c = 3 ×106 Km/s = 3×108 m/sfrequency, f = 512 MHz =5.12×108 Hz

Q: The speed of light (and radio waves) is 300,000 km/s.  What is the wavelength (in meters) of a radio…

A:

Q: What is the wavelength of radio waves transmitted by a radio station with a frequency of 220 million…

A: Wavelength is,

Q: If the speed of light is 3×108 meters/second and the wavelength of an infrared wave used in a remote…

A:

Q: A certain radar installation transmits electromagnetic radiation with a wavelength of 3.5 cm.  What…

A:

Q: In he vacuum of space, the speed of light (c) is 3 X 105 km/s and 1 km = 1,000 = 10³ m. Using V = c…

A: Introduction: According to Einstein’s theory of the relativity, ultimate speed for matter is the…

Debye Theory of Solids

In solid-state physics, debye theory is used to estimate the phonons contributing to the specific heat capacity in a solid. It explains that the specific heat is a consequence of the vibrations of the atomic lattice of the solid, which is in contrast to the Einstein model. In the Einstein model, solids are treated as independent, non-interacting quantum harmonic oscillators. This model clearly explains the low-temperature dependence of the heat capacity, which is proportional to T3. This is known as Debye T3 law.