1. State three ways of increasing the rate of cooling of a cup of tea .
2. What is doping in a semi conductor
3. Write the del Broglie equation
4. Explain the significant of the equation
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1 way cup me pani dalo
2 way cup me ice dalo
3 way cup ko fridge me dalo
2 way cup me ice dalo
3 way cup ko fridge me dalo
ezeconoge:
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