Verified Solution • 2025–26 Session moderate

QJEEM23Ph0bcb: JEE Main 2023 Physics - Class 11 JEEM23Ph0bcb Solution: Choose the incorrect statement from the following:

Choose the incorrect statement from the following:

Multiple Choice Options

  • A The linear speed of a planet revolving around the sun remains constant.
  • B When a body falls towards earth, the displacement of earth towards the body is negligible.
  • C The speed of satellite in a given circular orbit remains constant.
  • D For a planet revolving around the sun in an elliptical orbit, the total energy of the planet remains constant.

Step-by-Step Verified Solution

The linear speed of a planet revolving around the sun does not remain constant, as planets follow an elliptical orbit around the sun. According to Kepler's second law, the areal velocity of a planet remains constant, which means that the planet moves faster when it is closer to the sun (at perihelion) and slower when it is farther away (at aphelion).

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