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प्रश्न
What do we call an electric bulb producing light?
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उत्तर
Artificial source of light.
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संबंधित प्रश्न
Write true or false of the following statement.
We can see an object through an opaque medium.
Select the correct alternative.
The luminous body is
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.
Substance which don’t allow light to pass through them,
Write true or false
Opaque objects do not allow light to pass through them.
Answer the following.
Name some sources of light that are not hot.
Choose the translucent substance from the following
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.
Boojho and Paheli were given one mirror each by their teacher. Boojho found his image to be erect and of the same size whereas Paheli found her image erect and smaller in size. This means that the mirrors of Boojho and Paheli are, respectively
