According to the Inverse-Square Law, if the distance to a lightbulb increases by a factor of 5, the bulb’s apparent brightness (flux)
Q: 2) (a) Gives the Miller indices of the directions and planes in Figure 1. (P1 red plane and P2 grey…
A:
Q: true or false. the red light has more energy than the green light
A:
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: The ionized calcium line in Sun's spectrum has a frequency of 7.526×10¹4 Hz. Find the frequency…
A: As per general relativity gravity affect the path of light. A gravitational source sends the space…
Q: 55. A cell tower is a site where antennas, transmitters, and receivers are placed to create a…
A: Given: Point A is (4,6). The range of the tower is 1.5 mi.
Q: If a luminous object were moved to one-half the original distance, it would appear a. one-half as…
A: The final distance is half of the initial distance. df=di2
Q: Where is the 1/2 coming from?
A: Write the expression for the distance. Here, v is the distance and Δt is the time difference. In…
Q: Suppose a star is 7.61 ✕ 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth…
A:
Q: The area occupied by the circular guide at mode (TE11) and the area occupied by the rectangular…
A:
Q: (b) How long does it take sunlight to reach Earth?
A: We are provided with... Distance of a star = ds = 6.74*10¹⁸ m Distance from earth to moon = rem =…
Q: how 2.40xj1510+15 arrived at 2.40x15102+152
A: Given value--- R = 10 ohm. reactance = 15 ohm. RMS voltage = 20 V. total current = 2.40 Amp. We…
Q: In the diagram below angle w is 36.0° and angle x is 116°. w iv
A: Given W= 36° X= 116°
Q: A laser emits light of frequency 4.74 x 1014 Hz. What is the wavelength of the light in nm (10 m)?
A: Frequency of laser light is Speed of light is Note:Find:Wavelength of light.
Q: Explain the basic properties of light.
A: The question requests an explanation of the basic properties of light.
Q: Which object is hotter? Object 1 at T = 30° Object 2 at T = 30° Object 3 at T = 30
A: Given: Object 1 at T1 = 30 ̊C Object 2 at T2 = 30 ̊ F Object 3 at T3 = 30 K
Q: What is the speed of light in a medium ( km/s) with refractive index n = 1.5 ? Assume the speed of…
A: Given refractive index of a medium = n = 1.5 the speed of light in vacuum = 300000 km/s We have to…
Q: A particle with a charge of +1.24x10-8 C is moving with instantaneous velocity = (-4. 19 x 10¹ m/s)i…
A:
Q: 5. Consider the resistor network connecting points A and B in the figure be- low. What is the…
A:
Q: 3. Using your value of b and the Wien's Displacement equation, predict the surface temperature of a…
A: Solution
Q: What is the speed of light in a medium
A:
Q: Express the distance light travels in one year, known as the light year, or 1Ly, in units of meters.…
A: Given: The speed of light is c=3×108 ms. No of seconds in 1 year sy=365 days×24 hrs×60 min×60…
Q: 101.0 MHzMHz (typical frequency for FM radio broadcasting). 102.4 MHzMHz (typical frequency for FM…
A: This question can easily be solved by applying the basic concept of significant figure .
Q: What is the wavelength of light if it's frequency is 1.00 s-1?
A:
Q: For the point light source of light, what is the irradiance measured at 1m and 2m from a 1W light…
A:
Q: MÚEGYETEM 17 8 2 • The diffusion coefficients for copper in aluminum at 500C and 600C are 4.8 ·…
A: Given: Diffusion coefficient of Al at 5000 c = 4.8 x 10-14 m2 /s Diffusion coefficient of Al at 6000…
Q: The neutral sodium line in Sun's spectrum has a wavelength of 5896 Å. Find the wavelength shift of…
A: When a photon is moving away in a gravitational field it will lose energy. This will increase the…
Q: Simplify the following: (10.5 x 104) - (2.3 x 10°) O-2.299895 x 10° -2.299895 × 10-5 O8.2 x 10º 8.2…
A:
Q: Simplify the following: (3.5 x 10*) (8.9 x 10°) -8.8965 x 10 3 O -5.4 x 10° O-5.4 x 10 8.8965 x 10°
A: We have to simplify the given expression as follows,(3.5×103)-(8.9×106)
Q: Convert the following into scientific notation: 4.3
A: The correct answer is 4.3 ×100 Explanation: In scientific notation, nonzero numbers are written…
Q: 3. For x[n] = {1, 1, 0, 0), y[n] = {1, 0, 1, 0), evaluate circular convolution z[n] = x[n] Ⓡy[n] (b)…
A: Solution:- The circular convolution of the given signals…
Q: In the picture below, two identical light bulbs are wired to a single battery as shown. When the…
A: Since both bulbs are identical ,so same current will flow and hence power dissipation will be same…
Q: How to calculate the speed of light.
A: Write the formula for the speed of light.
Q: What is the wave length, in nm, of a light wave with a frequency of 4*10^15 Hz?
A:
Q: The wavelength of range of the visible spectrum extends from violet (400nm) to red (750nm). Express…
A:
Q: umen/Watt, what will be the
A: Given as, 80 Lumen/Watt
Q: 3) How bright will Pluto appear in reflected or scattered sun-light (total Flux received in W/m² )…
A: The radius of pluto is .The radius of sun is .The albedo of Pluto is 0.60The surface temperature of…
Q: 6. Long Wavelengths of light have what kind of frequency? 1 Higher frequencies Lower frequencies All…
A: The frequency of the wave is inversely proportional to its wavelength. This means that…
Q: What is the frequency (in Hertz) of blue light that has a wavelength of 433 nm? [Hint: Write your…
A:
According to the Inverse-Square Law, if the distance to a lightbulb increases by a factor of 5, the bulb’s apparent brightness (flux)
According to inverse- square law
Where F = Flux (bulb’s apparent brightness), L is the luminosity, and r is the distance between source and the point where we want to find the flux
So when r is increases by 5 times, then flux will be
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
