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Buy NowMnemonics are memory techniques designed to help students recall complex information easily. These techniques utilize association methods, acronyms, and visualization strategies to enhance retention. By enabling quick recall of key concepts, mnemonics are especially useful for NEET exam preparation.
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Buy Now1. A tuning fork of frequency 480 Hz is used in an experiment for measuring speed of sound (v) in air by resonance tube method. Resonance is observed to occur at two successive lengths of the air column, L1= 30 cm and L2= 70 cm. Then v is equal to :
2. The vapour pressures of pure liquids A and B are 400 and 600 mmHg, respectively at 298K. On mixing the two liquids, the sum of their initial volumes is equal to the volume of the final mixture. The mole fraction of liquid B is 0.5 in the mixture. The vapour pressure of the final solution, the mole fraction of components A and B in vapour phase, respectively are-
3. In mature parts of most of the flowering plants, the tissues formed after dedifferentiation are:
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