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QJEEM23Phd2e6: JEE Main 2023 Physics - Class 12 JEEM23Phd2e6 Solution: Spherical insulating ball and a spherical metallic ball of same …
Spherical insulating ball and a spherical metallic ball of same size and mass are dropped from the same height. Choose the correct statement out of the following
{Assume negligible air friction}
Multiple Choice Options
- A Metal ball will reach the earth's surface earlier than the insulating ball
- B Both will reach the earth's surface simultaneously.
- C Insulating ball will reach the earth's surface earlier than the metal ball
- D Time taken by them to reach the earth's surface will be independent of the properties of their materials
Step-by-Step Verified Solution
The correct answer is option C: the insulating ball will reach the earth's surface earlier than the metal ball.
When the two balls are dropped from the same height, they will experience the same gravitational force, which will cause them to accelerate downwards. However, According to Faraday’s law of electromagnetic induction motion of metal is opposed by earth magnetic field. Which will slightly reduce its acceleration.
On the other hand, the insulating ball will not experience any electromagnetic induction. Therefore, it will accelerate downwards at a slightly faster rate than the metal ball. As a result, the insulating ball will reach the earth's surface earlier than the metal ball.
So, option C is the correct statement.
When the two balls are dropped from the same height, they will experience the same gravitational force, which will cause them to accelerate downwards. However, According to Faraday’s law of electromagnetic induction motion of metal is opposed by earth magnetic field. Which will slightly reduce its acceleration.
On the other hand, the insulating ball will not experience any electromagnetic induction. Therefore, it will accelerate downwards at a slightly faster rate than the metal ball. As a result, the insulating ball will reach the earth's surface earlier than the metal ball.
So, option C is the correct statement.