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Variation of g with Depth and Height, Gravitation (Physics) Video Lecture - Class 11

FAQs on Variation of g with Depth and Height, Gravitation (Physics) Video Lecture - Class 11

1. How does the depth affect the value of gravitational acceleration?
Ans. The depth does not affect the value of gravitational acceleration. Gravitational acceleration is a constant value (approximately 9.8 m/s² on Earth) and remains the same regardless of depth.
2. How does the height affect the value of gravitational acceleration?
Ans. The height also does not affect the value of gravitational acceleration. Gravitational acceleration is constant and does not change with height. However, the value of gravitational potential energy may change with height due to the change in distance from the center of the Earth.
3. Does the variation of g with depth and height depend on the location on Earth?
Ans. No, the variation of gravitational acceleration with depth and height does not depend on the location on Earth. It remains constant at approximately 9.8 m/s² regardless of the location. However, the value of gravitational acceleration may vary slightly at different locations due to factors such as altitude, latitude, and local geological conditions.
4. How can we measure the variation of gravitational acceleration with depth?
Ans. The variation of gravitational acceleration with depth can be measured using a gravimeter. A gravimeter is a device that measures the gravitational field strength, which can be used to determine the variation of gravitational acceleration with depth. By taking measurements at different depths, the changes in gravitational acceleration can be observed.
5. Is the variation of gravitational acceleration with depth and height significant in everyday situations?
Ans. In everyday situations, the variation of gravitational acceleration with depth and height is usually negligible. The difference in gravitational acceleration due to changes in depth or height is very small compared to the overall value of gravitational acceleration. Therefore, for most practical purposes, it can be assumed that gravitational acceleration remains constant regardless of depth or height.
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