Part A Two microwave signals of nearly equal wavelengths can generate a beat frequency if both are directed onto the same microwave detector. In an experiment, the beat frequency is 200 MHz. One microwave generator is set to emit microwaves with a wavelength of 1.440cm If the second generator emits the longer wavelength, what is that wavelength? Express your answer to four significant figures and include the appropriate units. HẢ ? A2 = Value Units

In a dentist's office an X-ray of a tooth is taken using X-rays that have a frequency of 6.28 × 1018 Hz. What is the wavelength in vacuum of these X-rays? Number i Units

I Review I Constants I Periodic Table A radio antenna broadcasts a 1.0 MHz radio wave with 20 kW of power. Assume that the radiation is emitted uniformly in all directions. Part A What is the wave's intensity 35 km from the antenna? Express your answer in watts per meter squared.

Just the 3rd question

Wave characteristics: The frequency of a microwave signal is 9.76GHZ what is its wavelength?

Part A The color of dyes results from the preferential absorption of certain wavelengths of light. Certain dye molecules consist of symmetric pairs of rings joined at the center by a chain of carbon atoms, as shown in (Figure 1). Electrons of the bonds along the chain of carbon atoms are shared among the atoms in the chain, but are repelled by the nitrogen-containing rings at the end of the chain. These electrons are thus free to move along the chain but not beyond its ends. They look very much like a particle in a one-dimensional box. For the molecule shown, the effective length of the "box" is 0.85 nm. Assuming that the electrons start in the lowest energy state, what is the longest wavelength this molecule will absorb? Express your answer with the appropriate units. На ? A₁ = Value Units Submit Request Answer ▾ Part B Assuming that the electrons start in the lowest energy state, what is the second longest wavelength this molecule will absorb? Express your answer with the appropriate…

Yellow light with wavelength 600 nm is travelling to the right (in the positive x direction) in vacuum. The light is polarized along the +y direction. The light passes an observer X located on the x axis. (a) Draw a neat labeled movie mode vector picture of the wave at the location of AX. (b) If the wave were to represent blue light instead of yellow light, how would your diagram in part a change? Draw a new diagram to explain these changes. If there is no change, say so explicitly.

Please help me with these questions An antenna broadcasts 600 MHz waves.  a. What is the wavelength of these waves? b. You are standing 1.0 m from the antenna with an instrument that can detect the intensity of these waves.  Describe as quantitatively as you can how the intensity you detect changes as you move away from the antenna to a distance of 10.0 metres. A second antenna broadcasting identical 600 MHz waves is placed 4.0 metres from the first one.  c. What is the phase difference between these two waves at the midpoint between the antennas?  d. You walk around the two antennas in a circle of radius 20 m with its centre at the midpoint between the two antennas.  How many maxima will you detect?

HW 2

IA Physical Science Final Exam 44 Login D World War II for Kid... Question 5 Tools - Alrat 40°C ✔Question 5 The table shows the speed of sound in different media Media Speed of Sound (m/s) 355 O A 8 V >> C OD A sound wave travels through the air, then into a glass block. Assuming frequency remains the same, how is the wavelength affected? It decreases. Q Zoom 4540 It increases. It remains the same. Google Play Music... It increases then decreases. canx4Lgang 720p https://testing.illuminateed.com/assessment/6390dbed8bf909b5078b5f80/6399eec3401f46da078bd7 ON