Section-D
24. (i) An object is kept at 15 cm from a lens. If the focal length of lens is 400 m, find the position and nature of image.
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In the past two weeks, the number of cases of COVID-19 outside China has increased 13-fold, and the number of affected countries has tripled.
There are now more than 118,000 cases in 114 countries, and 4,291 people have lost their lives.
Thousands more are fighting for their lives in hospitals.
In the days and weeks ahead, we expect to see the number of cases, the number of deaths, and the number of affected countries climb even higher.
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