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Physics
Charges +q and –q are located at the corners of a cube of side as shown in figure. Find the work done to separate the charge to infinite distance.
Chemistry
Read the following statement and explanation and answer as per the options given below: Assertion: 1-Butene on reaction with HBr in the presence of a peroxide produces 1-bromobutane. Reason: It involves the formation of a primary radical. (a) If both assertion and reason are CORRECT, and reason is the CORRECT explanation of the assertion. (b) If both assertion and reason are CORRECT, but reason is NOT the CORRECT explanation of the assertion. (c) If assertion is CORRECT, but reason is INCORRECT. (d) If assertion is INCORRECT, but reason is CORRECT.
Mathematics
If the roots of the equation (x – p)(x – q) = p² – 2q² be real and distinct for all p>0 then q lies in the interval

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