THURSDAY, 27th July, 2023
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(1a)
(i) Solar water heaters: These are devices that use solar collectors to absorb energy from the sun and heat water for domestic or industrial use.
(ii) Solar air heaters: These are devices that use solar collectors to absorb energy from the sun and heat air for space heating or ventilation purposes.
(1b)
(1c)
Total Magnification = Magnification of Objective Lens × Magnification of Eyepiece Lens
Given,
Total Magnification = 10
Magnification of Objective Lens = 2
Let "E" represent the magnification of the eyepiece lens.
10 = 2 × E
E = 10/2
E = 5
