Subject :NSO Class : Class 8
Class : Class 8
Key Idea: Phenomenon of reflection is independent of medium. The deviation produced by combination of two plane mirrors is δ=2Ïâ2θ =2Ïâ2ÃÏ2 (θ=90o) â δ=Ï=180o. Hence, total deviation in incident ray is180o
Subject :NSO Class : Class 6
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Subject :NSO Class : Class 6
Ans 1:
Class : Class 6
According to me D is the correct answer as a wire should be connected from a terminal of a battery to the - terminal of the battery for longer stay of electric circuit, and this rule is satisfied by the circuit shown in option D.
Ans 11:
Class : Class 9
When a battery is constructed such that all the positive terminal of the cells are connected to a same point and all the negative terminals of the cells are connected to another point then the grouping of cells in this manner is called the Parallel Grouping of cells. The two end terminals of the construct where all the positive and negative terminals of the cells are connected act as the corresponding terminal of the battery.
Ans 20:
Class : Class 6
Answer B is the correct answer as the question specified for the arrangement which will allow the bulb to stay lighted for the longest possible time. Option B is connected as One cell as per the circuit (all connections are in parallel), While Option D is in Series (in case of failure of one cell, the circuit will not work as the current will not pass through the cell)
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Subject :NSO Class : Class 6
Ans 12:
Class : Class 5
its an error as weaving is done as sam eas decribed in statement 2 i think answer should be ...............BBBBB......................
Ans 14:
Ans 17:
Class : Class 6
the correct answer is c as it is given weaving fibres not weaving yarn.read the question carefully.
Ans 21:
Class : Class 7
The answer would be C. If you read the question carefully, it says, "Weaving is done by interlacing two sets of FIBRES at right angles." There are two things wrong with this: 1) They need not be interlaced at right angles. 2) The question clearly says 'fibres', not 'yarns' as it should be. Therefore, the answer is C.
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 4
Refer to the given flow chart and select the correct option regarding it. Which of the following correctly identifies P-R?
P | Q | R | |
A | Venus | Earth | Mars |
B | Mercury | Neptune | Mars |
C | Mars | Venus | Jupiter |
D | Earth | Uranus | Saturn |
Ans 3:
Class : Class 9
HOWððððºðððð¦ðððð¸ððð¼ððð¼ðð³ð³ð³ð³ð³ð³ð³ð³ð³ð³ð³ð³ð³ð³
Ans 9:
Ans 10:
Class : Class 4
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