Subject :NSO Class : Class 7
Subject :NSO Class : Class 7
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Subject :NSO Class : Class 6
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 8
Two metal spheres are mounted on insulating stands.
Sphere P is initially uncharged and sphere Q is initially
positively charged. A metal rod, held by an insulating
handle, is placed in contact with P and Q as shown
in figure.
What are the charges on P and Q after the rod is
placed in contact with them?
| Charge on P | Charge on Q | |
|---|---|---|
| A | Positive | Positive |
| B | Positive | Uncharged |
| C | Uncharged | Positive |
| D | Uncharged | Uncharged |
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Subject :NSO Class : Class 4
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Subject :NSO Class : Class 4
In the given table, animals are classified into groups X and Y on the basis of their breathing organs. To which of the following groups do eagle and mosquito belong?
| Eagle | Mosquito | |
|---|---|---|
| A | Y | Y |
| B | Y | X |
| C | X | X |
| D | X | Y |
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Subject :NSO Class : Class 7
Which of the following represents the incorrect classification of given changes?
| Endothermic change | Exothermic change | |
|---|---|---|
| A | Photosynthesis | Respiration |
| B | Combustion of a fuel | Melting of ice |
| C | Sublimation | Dilution of an acid |
| D | Drying of wet clothes | Condensation |
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Subject :NSO Class : Class 3
