query: What causes light to travel?
positive_passages.docid: 19829
positive_passages.text: Is light affected by gravity? Why?
negative_passages.docid: 32879
negative_passages.text: How does light speed up after coming out of a glass slab?
negative_passages.docid: 119516
negative_passages.text: What is the actual mechanism behind the reflection of various colored light by material of different color?
negative_passages.docid: 139551
negative_passages.text: A Light is shone out the side window of a spaceship ( moving close to light speed ), will the light still travel at the speed of light in the B axis?
negative_passages.docid: 84719
negative_passages.text: Why does a light beam in a moving light clock follows a V shaped path?
negative_passages.docid: 118268
negative_passages.text: Does light lose energy in transit?
negative_passages.docid: 100599
negative_passages.text: What is the trajectory of a photon moving through a vacuum?
negative_passages.docid: 104989
negative_passages.text: What causes refraction of visible light?
negative_passages.docid: 64508
negative_passages.text: Where exactly does energy quantisation come in for light?
negative_passages.docid: 142906
negative_passages.text: How can a particle in a medium ever travel faster than light?
negative_passages.docid: 133259
negative_passages.text: Loss in energy by light after reflections
negative_passages.docid: 10025
negative_passages.text: Why does wavelength change as light enters a different medium?
negative_passages.docid: 26074
negative_passages.text: Seeing strange things in light
negative_passages.docid: 91300
negative_passages.text: Does light loses its energy when it passes through denser medium?
negative_passages.docid: 820
negative_passages.text: Photons are faster than the speed of light because they travel in transversal waves?
negative_passages.docid: 8865
negative_passages.text: Could gravity accelerate light?
negative_passages.docid: 139062
negative_passages.text: Why does photon have to travel in sideways to hit the light clock?