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प्रश्न
What is light? Define it.
उत्तर
Light is a form of Energy i. e. The external physical cause that affects our eye to produce the sensation of vision.
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संबंधित प्रश्न
Write true or false of the following statement.
A shadow is formed because light travels in a straight-line path.
Select the correct alternative.
The luminous body is
What do we call a substance through which light passes? Give an example of such a substance.
Name any four man made sources of light.
Tick the correct answer.
Light is a font of
________ objects allow all the light to pass through them.
Choose the translucent substance from the following
The mirror used in search light is ______.
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.
Amount of light entering into the eye is controlled by ______.
