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प्रश्न
Fill in the blank
A ............. is formed when the path of light is obstructed by an ..............
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उत्तर
A shadow is formed when the path of light is obstructed by an object
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संबंधित प्रश्न
Does the flame of a gas stove emit light?
From among the following objects, list out the opaque, translucent, and transparent bodies in the space provided below:
A glass strip, an ordinary paper, greased paper, tracing paper, polythene sheet, wooden piece, steel plate, glycerine, kerosene oil, mustard oil, grounded glass, stone, book, water, and milk.
Opaque Transparent Translucent
Tick the correct answer.
The natural source of light is
The sun and ______ are the natural sources of light.
Answer the following.
List four natural sources of light.
When light passes through a prism, it gets separated into ______ colours.
Match the following.
| Group A | Group B |
| (a) Mirror | (1) Non-luminous |
| (b) Firefly | (2) Inverted image |
| (c) Pinhole camera | (3) Reflection |
| (d) Moon | (4) Luminous |
Speed of light in air is 3 × 108 m s–1 and the refractive index of a medium is 1.5. Find the speed of light in the medium.
The path of the light is called as ______.
A student observes a tree given in the following figure through a pin hole camera. Which of the diagrams given in the following figure (a) to (d), depicts the image seen by her correctly?
