Examlex
A converging lens with the same curvature on both faces and a focal length of 25 cm is to
be made from crown glass having a refractive index of 1.52. What radius of curvature is
required for each face?
Deep Sleep
A period of sleep during which brain activity slows down and physical recovery occurs.
Sleep Habits
Practices or routines that are associated with the timing, duration, and quality of sleep.
Office Work
Tasks and activities that are carried out in an office environment, typically involving clerical, administrative, or managerial duties.
Sleep Habits
The practices and routines that are conducive to sleeping well on a regular basis.
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