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प्रश्न
Describe the pictures.
उत्तर
- When the tube is bent, we cannot see the source of light
- When the tube is held straight we can see the flame. The two pictures verify that light travels in straight lines. This is known as rectilinear propagation of light.
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संबंधित प्रश्न
Match the following
| (a). A light ray passes from air to glass | (1) . speeds up |
| (b). A light ray passes from glass to water | (2). reflects red light |
| (c). Virtual image | (3). primary colours |
| (d). Red rose | (4). plane mirror |
| (e). Red, green, and blue | (5). slows down |
Fill in the blank.
The sun is a ............... source of light.
What is light? Define it.
Fill in the blank
A ............. is formed when the path of light is obstructed by an ..............
Write about two everyday situations that tell you that light travels in a straight line.
A ray of light passes from one medium to another medium. Refraction takes place when angle of incidence is ______.
The angle of deviation of light ray in a prism depends on the angle of ______.
If VB, VG, VR be the velocity of blue, green, and red light respectively in a glass prism, then which of the following statement gives the correct relation?
If the energy of incident beam and the scattered beam is the same, then the scattering of light is called as ______ scattering.
List any five properties of light.
