Fold a piece of cloth 3-4 times. Now bring it close to your mouth and blow hard on it. Did the cloth become warm?
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Which one of the following characterises the cold weather season in India? (a) Warm days and warm nights
(c) Cool days and cold nights
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When a glass rod is rubbed with a piece of silk cloth the rod a. and the cloth both acquire positive charge.
(b). becomes positively charged while the cloth has a negative charge.
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Which one of the following characterises the cold weather season in India? (a) Warm days and warm nights
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One of a time put some things to eat in other parts of your mouth under the tongue, on the lips, on the roof of the mouth.
No you get any taste there?
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Blow hard from your mouth on to your hands. How did you find the air from your mouth as compared to the air around? Was it hotter or cooler?
On blowing hard from the mouth on to the hands, the air from the mouth feels hotter as compared to the air around.
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Now put your hands at some distance from your mouth and blow again. Does the air from your mouth feel warm? Why?
When the hands are placed at some distance from the mouth and the air is blown again, this time the air from the mouth does not feel much warm. This...
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Take a glass. Bring it near your mouth and blow hard on it. Do this two or three times. Does the glass look hazy?
Yes, a mirror can also made hazy in the same way. On blowing air from the mouth on the mirror, the mirror becomes moist. The air blown from mouth is...
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We blow to cool hot things as well as to warm them. Give examples of each.
Example, when we blow to cool hot things: (i) A cup of tea (ii) any hot food etc. Example when we blow to warm a cold thing. Our hands in the winters.
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Assertion (A): The Khilafat movement did bring the urban Muslims into the fold of the National Movement.
(a) Both are correct and R explains A.
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How many times the word ‘Jana’ occur in the Rigveda? (a) 75 times (b) 175 times (c) 275 times (d) 375 times
(c) The term ‘Jana’ occurs 275 times in the Rigveda. But Janapada is not mentioned. The term Rajya occurs only once.
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