Please select a subject first
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How many images of a candle will be formed if it is placed between two parallel plane mirrors separated by 40 cm?
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Two mirrors meet at right angles. A ray of light is incident on one at an angle of 30° as shown in Figure. Draw the reflected ray from the second mirror.

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Fill in the blanks:
Asteroids are found between the orbits of ________ __ and _________.
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Mark the following statement as true (T) or false (F).
INSAT is an artificial satellite. ( )
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Give two uses for the following:
coke
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The term used for the process of separation of grains from chaff is ______.
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Name the process in yeast that converts sugars into alcohol.
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What will happen to ‘pooris’ and ‘unused kneaded flour’ if they are left in the open for a day or two?
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Observe the set-up given in figure and answer the following questions.
- What happens to the sugar solution in A?
- Which gas is released in A?
- What changes will you observe in B when the released gas passes through it?

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How can we prevent the following diseases?
Cholera
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How can we prevent the following diseases?
Typhoid
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Complete the following cycle given as figure by filling the boxes (a), (b), (c), (d).

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Polycot is obtained by mixing
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Unscramble the jumbled word given below, related to synthetic material.
Lopmery
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Unscramble the jumbled word given below, related to synthetic material.
Relyteen
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Unscramble the jumbled word given below, related to synthetic material.
Yespolter
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Consider the list of terms given below:
- Seismic zone
- Fault zone
- Mantle
- Inner core
The boundaries of the earth’s plate are known as
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The aluminium strips in an electroscope as shown in the following figure are replaced by plastic strips and a charged body is brought in contact with the metal clip. What will happen?

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In an electroscope, if a negatively charged body is brought in contact with the metal dip, the strips of the electroscope diverge. If now another charged object carrying equal amount of positive charge is brought in contact with the clip, what will happen?
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The strips of an electroscope diverge when a charged body is brought in contact with the metal clip. Now the clip is touched gently by our hand. What will happen to the strips? Explain.
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