323 prompts matching "A lens formula problem with sign convention"
Quiz: Locating the centre of gravity of a regular body
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Real-life Nigeria: Stability in Nigerian lorries and market stalls
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Teach me: Density and relative density defined
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Quiz: Measuring the density of a solid and of a liquid
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Worked example: Calculating the pressure at a given depth
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Real-life Nigeria: Hydraulic brakes and jacks in Nigerian vehicles
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Physics at work: Hydraulics in Nigerian engineering
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Teach me: How light travels, and the evidence that it goes in straight lines
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Quiz: Luminous and non-luminous bodies
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Worked example: Calculating the size of a shadow cast by a point source
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Physics at work: Optics as a field of work
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Teach me: Reflection of light at a plane surface
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Quiz: The laws of reflection stated
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Worked example: Finding the number of images formed by two inclined mirrors
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Real-life Nigeria: Concave and convex mirrors in Nigerian use
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Teach me: Why light changes direction when it passes between media
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Quiz: The laws of refraction stated
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Worked example: Finding refractive index from a pair of measured angles
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Real-life Nigeria: Optical fibres and the periscope
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Physics at work: Fibre optics in Nigerian communications
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