Question

PLEASE ANSWER ALL PARTS, THANK YOU!

Multiple choice Short problems 1. The bending of light as it moves from one medium to another with different indices of refraction is due to change in what property of light? A) amplitude, B) phase, C) frequency, D) speed, E) color 2. A ray of light propagates in air (n= 1.33) and strikes a sheet of crown glass (n=1.523). If angle of refraction in glass is 35.2°, determine the angle of incidence. A) 30.3°, B) 32.8°, C) 35.2°, D) 41.2°, E) 45.0° 3. Which one of the following statements concerning image formed by a spherical concave mirror are true? A) When the object distance is larger than focal length, image is virtual, B) When object is at center of curvature, image is formed at infinity, C) When object distance is less than focal length, image is inverted relative to the object, D) When object distance is less than focal length, image is virtual, E) When object distance is larger than the focal length, image is upright relative to the object. 4. An object is placed at a focal point of a converging lens of focal length f, What is the image distance? A) f, B) 2f, C) 1/f, D) 2/f, E) at an infinite distance 5. An object is placed 1 m in front of a plane mirror. An observer stands 3m behind the object. For what distance, must the observer focus his eyes in order to see the image of the object. A) 1 m, B) 2 m, C) 3 m, D) 4 m, E) 5 m

Answer 1

CV it light n moves from one medium to another medium and bends due to bends due to refreaction - CD) Seep speed of light changes, (2) • refractive index of aire na = 1.33 of glass nga 2 1 3 angle of incident = 0, refreaction = O2 then, na sind, = ng sind, Sino sim ( Do, a 41.2° 152 sin 35.2 1.33 1523 1:33 your 3) state ment D ir trine. (A) equation of lens is tat I f Va de image ditance un object distance af t = 1 to th CO, .: Nao cal at near infinity

mirron observer object image 1 4m, Im behind the object's image will created mirrore As the observer is 2 m behiand the object 3m introont of the mirror Lis image distance from D Am om the