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Physics
A point particle of mass M is attached to one end of a massless rigid non-conducting rod of length L. Another point particle of the same mass is attached to the other end of the rod. The two particles carry charges +q and –q respectively. This arrangement is held in a region of a uniform electric field E such that the rod makes a small angle (say of about 5 degree) with the field direction, as shown in fig. Find an expression for the minimum time needed for the rod to become parallel to the field after it is set free.
Chemistry
Read the following statement and explanation and answer as per the options given below: Assertion: Acetic acid does not undergo haloform reaction. Reason: Acetic acid has no alpha-hydrogens. (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
Evaluate

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