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3.2.3. Thin lenses
A subsection of Physics, 0625, through 3. Waves
Listing 10 of 183 questions
A camera has a circuit containing a light-dependent resistor (LDR). shows part of this circuit. 6V Describe what happens to the resistance of the LDR and the current in the LDR when a bright light is shone on the LDR. A camera lens is used to produce an image of an object OX. The arrangement is shown in . F principal axis X O F The principal focuses of the lens are labelled F. On , draw a ray from the top of the object, parallel to the principal axis and continuing through and beyond the lens, draw in another ray to locate the position of the image of OX, carefully draw and label the image obtained.
0625_w15_qp_23
THEORY
2015
Paper 2, Variant 3
View
is a ray diagram of a convex lens being used as a magnifying glass to produce a virtual image. On , label the object O, label the image I, label a principal focus F, put arrows on the two rays to indicate their directions. shows a ray of light in air incident on an interface with glass. The refractive index of glass is 1.5. glass air incident ray On , accurately draw the ray as it travels in the glass. You will need to take a measurement from and carry out an appropriate calculation. Show your working.
0625_w15_qp_32
THEORY
2015
Paper 3, Variant 2
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is a diagram of a converging lens used to produce an image of an object. Each point marked F is a principal focus. F F object image Write down three terms that describe the image produced. shows a plane mirror, a point object O and an observer’s eye. O mirror eye On , draw two rays from the object reflected to the observer’s eye. On , complete your drawing to determine the position of the image of the object O. Label this image I.
0625_w17_qp_42
THEORY
2017
Paper 4, Variant 2
View
Questions Discovered
183