Activity no. 1 Learning Competencies: relate properties of plane mirrors to image and object distance and sizes Direction: Please answer the following briey 1. 2. 3. What kind of mirror is needed for obtaining a virtual image of the same size as the object? What is the name of the phenomenon in which the right side of an object appears to be the left side of the image in a plane mirror? When we sit in front of a plane mirror and write with our right hand, it appears in the mirror that we are writing with the left hand. What is the phenomenon responsible for the effect? 4. A candle 5.0 cm tall is 50 cm to the left of a plane mirror. Where is the image formed by the mirror and what is the height of this image? 5. A pencil that is 10.0 cm long is held perpendicular to the surface of a plane mirror with the tip of the pencil lead 12.0 cm from the mirror surface and the end of the eraser 2 1.0 cm from the mirror surface. What is the length of the image of the pencil that is formed by the mirror? Which end of the image is closer to the mirror surface: the tip of the lead or the end of the eraser? Activity no. 2 Learning Competencies: Determine graphically and mathematically the type {virtual/real), magnication, location, and orientation of an image of a point and extended object produced by a plane or spherical mirror. Directions: Solve the following Problems: 1. A toy 0.650 cm tall is placed 16.0 cm to the left of the vertex of a concave mirror with a radius of curvature of 22.0 cm. A. Draw a ray diagram to show the formation of the image of the toy. B. Determine the position, size, orientation, and nature (real or virtual} of the image 2. An image of the coin 1.5 cm tall is formed 6.50 cm behind the convex mirror. The radius of curvature of the convex mirror is 17.0 cm. A. Where is the coin located? Draw a ray diagram to show the location of the coin and the formation of the image of the coin. B. Determine the size, orientation, and nature [real or 1virtual] of the image. Title of the Activity: Image Formation by Lenses Activity no. 1 Learning Competencies: Determine graphically and mathematically the type {virtual} real], magnication, location ,r' apparent depth, and orientation of the image of a point and extended object produced by a lens or series of lenses [STEM_GP120PT-IVd-27] Direction: Use ray diagrams to locate the images of the following objects (1] an object that is 10 cm from a converging lens of 15.0 cm focal length, [2) an object that is 10 cm from a diverging lens of 15 cm focal length [34] Calculate the image location of parts [1] and [2} using the thinlens equation [56) How large is the image formed in parts [1] and [2). you may use the following equations below: 1/f= l/do + l/dl (E61. 1) m = hi/ho = di/do (Eq 2} Learning Competencies: Determine graphically and mathematically the type (virtual/real), magnification, location/ apparent depth, and orientation of the image of a point and extended object produced by a lens or series of lenses (STEM_GP12OPT-IVd-27) Direction: A Galilean telescope, sometimes called an opera-glass, such as the figure shown below, consists of a +10.0 cm objective lens and a -2.0 cm eyepiece. The lenses are separated by 8.0 cm. A Peacock Pansy butterfly 20 m from the objective lens is viewed. (1) Locate the final image (2) Calculate the total linear magnificationTitle of the Activity: For Your Eyes Only Activity no. 2 Learning Competencies: Apply the principles of geometric optics to discuss image formation by the eye, and correction of common defects. STEM_GP120PT-1Vd-28 A. Complete the table: Eye Defect Show using a ray Show using a ray diagram the eye- diagram correction of eye defect using a Nearsighted (myopia! Farsighted [hyperopiai