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- Find the frequency f in terahertz of visible light with a wavelength of 697 nm in vacuum. f = THz What is the wavelength A in centimeters of electromagnetic microwave radiation whose frequency is 9.91 GHz? cmThe AM radio band in a particular area has a frequency range of 554 kHz to 1620 kHz. How long is the wavelength of the radiation at the beginning of the range and how long is the wavelength of the radiation at the end of the range? Answer in units of m.The average Earth-Sun distance is 1.00 astronomical unit (AU). At how many AUs from the Sun is the intensity of sunlight 1/49 the intensity at the Earth? AU
- Assume the radiation from a heat lamp is monochromatic, with a wavelength of 1.5 μm . I =3.313 kW/m^2. a. What is the peak electric field strength, in kilovolts per meter? b. Find the peak magnetic field strength, in microtesla. c. How long, in seconds, will it take to increase the temperature of the 3.95-kg shoulder by 2.00°C, assuming that the shoulder absorbs all the radiation from the lamp and given that its specific heat is 3.47 × 103 J/(kg⋅°C)?If a light wave has an electric field strength of 437.3 V/m, what is the magnetic field strength in a vacuum? Express your answer in micro Tesla ( uT =*10^ ^ -6) and to 3 decimal placesed k ces A particular form of electromagnetic radiation has a frequency of 2.74 × 10¹5 Hz. (a) What is the wavelength in nanometers? In meters? Enter your answer in scientific notation. x 10 x 10 (b) To which region of the electromagnetic spectrum would you assign it? X-ray visible nm microwave m infrared ultraviolet radio wave gamma ray x 10 (c) What is the energy (in joules) of one quantum of this radiation? Enter your answer in scientific notation. J
- The speed of all empty space is 3.00 × 108 m/s. electromagnetic waves in a) What is the wavelength of radio waves emitted at 98.9 MHz? Answer in units of m. b) What is the wavelength of visible light emitted at 5.9 × 108 MHz? Answer in units of m. c) What is the wavelength of X rays emitted at 3.1 x 10¹2 MHz? Answer in units of m.The intensity of sunlight is around 1330 W/m2 at the top of earth’s atmosphere. If the sunlight is all absorbed, what is the force on the earth from sunlight?Light with a wavelength of 571 nm is in the visible part of the electromagnetic spectrum. What is the numerical value of the exponent p if 571 nm = 571 x 10² cm? p= Report your numerical answer below, assuming three significant figures.
- If the intensity of sunlight at the Earth's surface under a fairly clear sky is 1 405 W/m2, how much electromagnetic energy per cubic meter is contained in sunlight? µJ/m3What is the wavelength (in m) of a radio signal with a frequency of 98.3 MHz? Enter the numerical part of your answer to three decimal figures. The speed of light in a vacuum (and in normal air) = Vlight = c = 3.00 × 108 m/s. Your Answer:A laser beam has an average intensity, S = 8,005.9 W/m2. What is the magnitude of the rms magnetic field, Brms in mT, component of the electromagnetic waves emitted by this laser? 1.0 mT = 10-6 T. Please round your answer to one decimal place. Equations: cB2 S= TIMS Ho H₂=47x10-¹Tm/ A c= 3.0x108 m/s