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Two identical spheres of same mass and specific gravity (which is the ratio of density of a substance and density of water) 2.4 have different charges of Q and – 3Q. They are suspended from two strings of same length l fixed to points at the same horizontal level, but distant l from each other. When the entire set up is transferred inside a liquid of specific gravity 0.8, it is observed that the inclination of each string in equilibrium remains unchanged. Then the dielectric constant of the liquid is
  • a)
    3
  • b)
    2
  • c)
    1.5
  • d)
    None of these
Correct answer is option 'C'. Can you explain this answer?
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-Q. The spheres are suspended in a liquid of density 1.2. What can you say about the motion of the spheres?

Since the spheres have the same mass and specific gravity, they will experience the same buoyant force in the liquid. The spheres have different charges, one positive and one negative, so they will experience an electrostatic force of attraction or repulsion between them.

If the charges are strong enough, the spheres may move towards each other due to the electrostatic force, overcoming the buoyant force. However, if the charges are not strong enough, the spheres will remain suspended in the liquid, balanced by the buoyant force.

The exact motion of the spheres will depend on the magnitudes of the charges and the distance between them.
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Two identical spheres of same mass and specific gravity (which is the ratio of density of a substance and density of water) 2.4 have different charges of Q and – 3Q. They are suspended from two strings of same length l fixed to points at the same horizontal level, but distant lfrom each other. When the entire set up is transferred inside a liquid of specific gravity 0.8, it is observed that the inclination of each string in equilibrium remains unchanged. Then the dielectric constant of the liquid isa)3b)2c)1.5d)None of theseCorrect answer is option 'C'. Can you explain this answer?
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Two identical spheres of same mass and specific gravity (which is the ratio of density of a substance and density of water) 2.4 have different charges of Q and – 3Q. They are suspended from two strings of same length l fixed to points at the same horizontal level, but distant lfrom each other. When the entire set up is transferred inside a liquid of specific gravity 0.8, it is observed that the inclination of each string in equilibrium remains unchanged. Then the dielectric constant of the liquid isa)3b)2c)1.5d)None of theseCorrect answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Two identical spheres of same mass and specific gravity (which is the ratio of density of a substance and density of water) 2.4 have different charges of Q and – 3Q. They are suspended from two strings of same length l fixed to points at the same horizontal level, but distant lfrom each other. When the entire set up is transferred inside a liquid of specific gravity 0.8, it is observed that the inclination of each string in equilibrium remains unchanged. Then the dielectric constant of the liquid isa)3b)2c)1.5d)None of theseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two identical spheres of same mass and specific gravity (which is the ratio of density of a substance and density of water) 2.4 have different charges of Q and – 3Q. They are suspended from two strings of same length l fixed to points at the same horizontal level, but distant lfrom each other. When the entire set up is transferred inside a liquid of specific gravity 0.8, it is observed that the inclination of each string in equilibrium remains unchanged. Then the dielectric constant of the liquid isa)3b)2c)1.5d)None of theseCorrect answer is option 'C'. Can you explain this answer?.
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