Propagation speed

Artículos

• Time it takes for sunlight to reach the Earth (3165)
  21 de mayo de 2015, por F_y_Q

  There are 150 000 000 km between the Sun and the Earth. If the velocity of light in a vacuum is 300 000 km/s, how long does it take for light to reach the Earth?

• Waves: relation between frequency and wavelength (3677)
  23 de agosto de 2016, por F_y_Q

  An electromagnetic wave is travelling through a vacuum. If its frequency is 1 MHz, what will be its wavelength?

• Velocity of a wave (2911)
  6 de enero de 2015, por F_y_Q

  The wavelength of a wave is 0.00015 m and its frequency is 7 000 Hz. What is the velocity of the wave?

• Relation between frequency and wavelength (3140)
  8 de mayo de 2015, por F_y_Q

  A spring is producing waves with a frequency of 4 Hz and a wavelength 0.5 m. What is its velocity? What will be its wavelength if the frequency is doubled? What will be its wavelength if the frequency is reduced to half?

• Refraction and speed of light (2759)
  22 de octubre de 2014, por F_y_Q

  The refractive index of green light in water is 1.42. What is its speed when it travels through water?
  (Velocity of light in a vacuum is 300 000 km/s).