small plane mirror and wooden clamp Convex lens and holder. two mounted pins‚ metre rule or optical bench. Method: Place a mounted pin at a distance from the convex lens greater than the focal length so that a real image of the pin is produced. Locate this image by means of the second pin. Place the convex mirror between this second pin and the lens and adjust its position until the light reflected from the mirror passes back through the lens and forms an image coincident with the object
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Lorraine Bale TDA 2.2 Safeguarding the welfare of children and young people 1.1 United Nations convention protection of children’s act- when was the 1st legislation impacted. It was drawn up in 1989‚ but the United Kingdom decided on 16th December 1991 formally agreed to make sure that every child has the same rights listed in the convention. Signed 20th November 1989 Location New York Effective 2nd September 1990 Condition 20 ratifications Signatories 140 Parties 194 Depositary UN secretary general
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are perceived by the eye and the lens is the part that makes this possible. Objects which are close to the eye are seen by the eyes’s lens becoming thicker and more bulbous in order to create a lens with a higher refractive index for detailed sight‚ i.e. for close work like sewing . The CILIARY MUSCLE contracts‚ pulling the Ciliary process and Choroid towards the lens. Tension is therefore released ob both the SUSPENSORY LIGAMENTS and the lens and this makes the lens able to focus the light rays
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asks you to shop for her as she is not able to get to the shop herself. Bi Describe the difficulties for you in exercising your duty of care and upholding Mrs Ahmed’s right to choose. Firstly check the notes and guidance in mrs ahmeds care plan‚ contact the care co-ordinator and explain mrs ahmeds choices are not suitable for her dietary requirements and may also not be suitable for her religious beliefs either. Discuss the best way to approach mrs ahmed about her choices. Advise mrs ahmed that what
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magnification on a microscope? Answer: The shortest lens is the scanning objective; you use it to locate the object on the slide. The medium-length lens is the low-power objective. The longest lens is the high-power objective. Multiplying the power of the eyepiece lens and the nose piece lens gives you the total number of times an object will magnified. (4 points) Score 2. Explain how to focus a microscope using the high power lens. Include any safety issues you need to be aware of.
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There are 3 main parts of the microscope such as illuminating parts‚ magnifying parts and mechanical parts. The sub-parts in illuminating parts are electric lamp and iris diaphragm while the sub-parts of magnifying parts are eyepiece and objective lens. The mechanical parts consist of most sub-parts among these three such as barrel‚ arm‚ stage‚ coarse focus knob‚ fine focus knob and base. Figure 1 : Fully Assembled Optical Microscope. Illuminating
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the following orientations of the letter would the viewer see? b p q d Question 6 of 25 Which of the following procedures should be done just prior to adjusting the diopter‚ when using the compound microscope? Clean all lenses with lens paper Turn the light on Adjust the iris diaphragm Adjust the fine focus Question 7 of 25 Two parts of the microscope that regulate the amount of light visible through the ocular are the: fine and coarse adjustment knobs ocular and
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distance of its images‚ di ‚ and the focal length‚ f‚ of a spherical mirror. In symbols: + = LENSES One of the most useful and simplest optical devices we have. Types of Lenses: a. Concave Lens – The rays are diverged by the lens‚ thus calling it a diverging lens b. Convex Lens – are designed so that parallel rays cross
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And that determines what kind of lens the optometrist will work with. What are the eye conditions? If seeing: * Light rays Light rays Retina Retina Retina Retina Light rays Light rays Focal point Focal point Far blurry objects (near-sightedness) use spherical corrective lenses with negative power. EYE EYE (Near-sightedness) correction (Near-sightedness) correction Negative spherical lens Negative spherical lens Focal
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CYP Core 3.3: Understand how to safeguard the well-being of children and young people 1. Understand the main legislation‚ guidelines‚ policies and procedures for safeguarding children and young people. 1.1 Outline current legislation‚ guidelines and policies and procedures within own UK Home Nation affecting the safeguarding of children and young people. The Children Act 1989‚ carried out for the most part on 14 October 1991‚ introduced comprehensive changes to legislation in England and
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