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- What is the wavelength of light if its frequency is 1.4 x 104 Hz? Assume the light is traveling through a vacuum.An electromagnetic wave of frequency 91.5 MHz travels in crown glass at a speed of 1.972x108 m/s. What is the wavelength of this wave while it is inside the glass?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.
- An electromagnetic wave with an electric field that oscillates with a period of 8.43 ps is travelling in a vacuum. What is the wavelength of this electromagnetic wave?An electromagnetic wave of frequency 3.2×1014 Hz falls on a medium of refractive index 4.1. The speed of E-M waves in vacuum is 3×108 m/s. The wavelength of the E-M wave in vacuum, λ0 = Unit . The speed of the E-M wave in the medium, v = Unit . The wavelength of the E-M wave in the medium, λ = Unit . If the incident wave falls from air and the angle of incidence is 17.5°, what is the angle of refraction? The angle of refraction, θr = UnitConsider electromagnetic waves in free space. What is the wavelength of a wave that has the following frequencies? (a) 4.20 ✕ 1011 Hz m(b) 6.76 ✕ 1016 Hz m
- An electromagnetic wave with a frequency of 4.72 x 1014 Hz has a speed of 1.71 x 108 m/s when it travels through a medium. What is the wavelength of this electromagnetic wave when it is in the medium?Consider electromagnetic waves in free space. What is the wavelength of a wave that has the following frequencies? (a) 4.74 x 10¹¹ Hz m (b) 7.52 x 1016 Hz mThe speed of a light wave in a certain transparent material is 0.5790.579 times its speed in vacuum, which is 3.00×108 m/s3.00×108 m/s. When yellow light with a frequency of 5.23×1014 Hz5.23×1014 Hz passes through this material, what is its wavelength ?� in nanometers?
- An electromagnetic wave of frequency 7.7×10¹3 Hz falls on a medium of refractive index 4.9. The speed of E-M waves in vacuum is 3×108 m/s. = The wavelength of the E-M wave in vacuum, λo The speed of the E-M wave in the medium, v = 3.8961038 x Unit nm 61224489.✔ Unit m/s The wavelength of the E-M wave in the medium, λ = If the incident wave falls from air and the angle of incidence is 44°, what is the angle of refraction? The angle of refraction, 0₁ = Unit degree Unit nmAn electromagnetic wave with a frequency 7.50x1014 Hz propagates with a speed of 2.00x10® m/s in a certain piece of glass. What is The index of refraction, n, of the glass? (unitless)The intensity of light from a source is inversely proportional to its square of the distance from the source. If a pocketbook is 2.4 m from the lamp, the illumination on the page of the book is 500 lm/m2 (lumens per square meter). How far must the lamp be moved so that the intensity of light will be doubled?