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प्रश्न
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?
पर्याय
VB = VG = VR
VB > VG >VR
VB < VG < VR
VB < VG > VR
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उत्तर
VB < VG < VR
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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 |
How does light make an object visible?
Write the names of some cold light-emitting objects.
The sun and ______ are the natural sources of light.
Fill in the blank
There are ........... and man-made ............ of light.
Write true or false
Opaque objects do not allow light to pass through them.
Answer the following.
List four natural sources of light.
Describe the pictures.


When a beam of white light passes through a prism it gets ______.
a) Draw ray diagrams to show how the image is formed using a concave mirror, when the position of object is:
- at C
- between C and F
- between F and P of the mirror.
b) Mention the position and nature of image in each case.
