MCQ
Which of the following is a natural indicator?
- ATurmeric
- BPhenolphthalein
- ✓Litmus
- DBoth $1$ and $3$
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Assertion (A): The magnitude of the magnetic field at a point on the axis of a current-carrying solenoid is inversely proportional to the current flowing through the solenoid.
Reason (R): The magnitude of the magnetic field at a point on the axis of a current-carrying solenoid is directly proportional to the number of turns per unit length of a solenoid.
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Produced
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Produced
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Remain
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(a)
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Carbon dioxide
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Water
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Oxygen
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(b)
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Chlorophyll
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Carbon dioxide
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Water
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(c)
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Oxygen
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Starch
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Cellulose
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(d)
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Water
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Oxygen
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Chlorophyll
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