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a hollow sphere filled with water is used as the bob of a pendulum. if water slowly leaks out of the bob how will the time period vary?
T =2pi(L/g)1/2 time period is independent of mass of bob so it should not vary when the water leaks..
T =2pi(L/g)1/2
time period is independent of mass of bob so it should not vary when the water leaks..
This same question was asked in kvpy 2010 paper and their answer key says T increases first and then decreases
Dear Varsha, Yes u are correct T increases first because centre of mass of hollow sphere ( with water ) is in the centre of the sphere but as the water leaks from it the centre of mass shifts downwards and hence T starts decreasing. Please feel free to ask your queries here. We are all IITians and here to help you in your IIT JEE preparation. All the best. Win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian. Now you score 5+15 POINTS by uploading your Pic and Downloading the Askiitians Toolbar respectively : Click here to download the toolbar.. Askiitians Expert Anil Pannikar IIT Bombay
Dear Varsha,
Yes u are correct T increases first because centre of mass of hollow sphere ( with water ) is in the centre of the sphere but as the water leaks from it the centre of mass shifts downwards and hence T starts decreasing.
Please feel free to ask your queries here. We are all IITians and here to help you in your IIT JEE preparation.
All the best.
Win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.
Now you score 5+15 POINTS by uploading your Pic and Downloading the Askiitians Toolbar respectively : Click here to download the toolbar..
Askiitians Expert
Anil Pannikar
IIT Bombay
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