Differentiate between regular and diffused reflection. Does diffused reflection mean the failure of the laws of reflection?
Difference between the regular reflection and the diffused reflection are as follows:
Regular Reflection |
Diffused Reflection |
When all the parallel rays reflected from a plane surface are parallel, the reflection is known as regular reflection. |
When all the parallel rays reflected from the surface are not parallel, the reflection is known as diffused reflection. |
The image formed by the regular reflection is sharp and clear. |
The image formed by the irregular reflection is either faint or blurred. |
Regular reflection takes place on a smooth surface. |
Irregular reflection takes place on the round surface. |
No, diffused reflection does not mean the failure of laws of reflection. The laws of reflection are also followed in diffused reflection.
Describe with the help of a diagram an instrument which can be used to detect a charged body.
Sketch larynx and explain its function in your own words.
Arrange the following boxes in proper order to make a flow chart of sugarcane crop production.
Make a labelled diagram of a candle flame.
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The following Table shows the total power shortage in India from 1991– 1997. Show the data in the form of a graph. Plot shortage percentage for the years on the Y-axis and the year on the X-axis.
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Complete the crossword with the help of clues given below:
Across
1. This is necessary for photosynthesis.
3. Term for component present in the cytoplasm.
6. The living substance in the cell.
8. Units of inheritance present on the chromosomes.
Down
1. Green plastids.
2. Formed by collection of tissues.
4. It separates the contents of the cell from the surrounding medium.
5. Empty structure in the cytoplasm.
7. A group of cells.
What is a constellation? Name any two constellations.
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(b) Can Paheli at B see this image?
(c) Can Boojho at C see this image?
(d) When Paheli moves from B to C, where does the image of A move?
‘Manufacturing synthetic fibres is actually helping conservation of forests’. Comment.
Name the scale on which the destructive energy of an earthquake is measured. An earthquake measures 3 on this scale. Would it be recorded by a seismograph? Is it likely to cause much damage?
Sketch larynx and explain its function in your own words.
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Describe with the help of a diagram an instrument which can be used to detect a charged body.
Make a labelled diagram of a candle flame.
Describe the construction of a kaleidoscope.
The following Table shows the total power shortage in India from 1991– 1997. Show the data in the form of a graph. Plot shortage percentage for the years on the Y-axis and the year on the X-axis.