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Q.

Two metal spheres of masses m1 and m2 are suspended from a common point by a light insulting strings of same length. The length of each string is same. The spheres are given positive charges q1 and q2. Figure A shows angles made by the strings with vertical are different where as for figure B same. Then, which of the following is possible

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a

For figure A m1 > m2 and q1= q2

b

For figure A m1 > m2 and q1<q2

c

For figure B m1 = m2 and q1= q2

d

For figure A m1 > m2 and q1 q2

answer is A, B, C, D.

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Detailed Solution

If m1 > m2  , the angle made by the string with m1 will be less than the angle made by the string with m2. ( irrespective of the charges on the masses)

The figure B will be possible when m1=m2. ( Irrespective of the charges)

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Two metal spheres of masses m1 and m2 are suspended from a common point by a light insulting strings of same length. The length of each string is same. The spheres are given positive charges q1 and q2. Figure A shows angles made by the strings with vertical are different where as for figure B same. Then, which of the following is possible