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NEET 2012
Exam
NEET
Year
2012
Subject
Physics
Chapter
Gravitation

NEET 2012 · Physics · Gravitation

Which one of the following plots represents the variation of...

Which one of the following plots represents the variation of gravitational field on a particle with distance rr due to a thin spherical shell of radius RR ? ( rr is measured from the centre of the spherical shell).Which one of the following plots represents the variation of gravitational field on a particle with distance r due to aWhich one of the following plots represents the variation of gravitational field on a particle with distance r due to aWhich one of the following plots represents the variation of gravitational field on a particle with distance r due to aWhich one of the following plots represents the variation of gravitational field on a particle with distance r due to a

Options

  1. AHalf-lives of two radioactive substances A and B are respectively 20 min and 40 min . Initially the samples of A and B
  2. BHalf-lives of two radioactive substances A and B are respectively 20 min and 40 min . Initially the samples of A and B
  3. CHalf-lives of two radioactive substances A and B are respectively 20 min and 40 min . Initially the samples of A and B
  4. DHalf-lives of two radioactive substances A and B are respectively 20 min and 40 min . Initially the samples of A and B

Correct answer

B. Half-lives of two radioactive substances A and B are respectively 20 min and 40 min . Initially the samples of A and B

Step-by-step solution

Inside the shell, E=0E=0 and outside the shell, E∝1rE \propto \frac{1}{r} Hence, graph (b) shows the exact result.
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