All India Engineering / Architecture Entrance Examination (AIEEE)

CBSE Guess > AIEEE > AIEEE Papers > 2010 > Physics

AIEEE 2010 Physics

Q. 21. Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle of 30º with each other. When suspended in a liquid of density 0•8 g , the angle remains the same. If density of the material of the sphere is 1•6 g , the dielectric constant of the liquid is

1. 4
2. 3
3. 2
4. 1

Sol:

    In air,

Answer : (3)