concave mirror is constructed so that a man at a distance of 27 cm from the mirror sees his image magnified 3.0 times.     Part A What is the radius of curvature of the mirror? Express your answer using two significant figures.

A layer of oil (n = 1.45) floats on an unknown liquid. A ray of light originates in the oil and passes into the unknown liquid. The angle of incidence is 69.5 degrees, and the angle of refraction is 68.4 degrees. What is the index of refraction of the unknown liquid? Number i Units

Part A How far apart are an object and an image formed by an 95 -cm -focal-length converging lens if the image is 3.20 x larger than the object and is real? Express your answer using two significant figures. ? do + d; = Cim

A spherical mirror at an amusement park has a radius of 9 m .     Part A If it forms an image that has a lateral magnification of +2.5, what are the object and image distances? Express your answers using two significant figures separated by a comma.

A shaving/makeup mirror produces an erect image that is magnified by a factor of 2.5 when your face is 24 cm from the mirror. Part A What is the mirror's radius of curvature? Express your answer using two significant figures. ? R = cm Submit Request Answer Provide Feedback

Part A A converging lens with a focal length of 60 cm and a diverging lens with a focal length of -50 cm are 290 cm apart. A 3.5-cm-tall object is 80 cm in front of the converging lens. Calculate the image position relative to the diverging lens. Express your answer to two significant figures and include the appropriate units. Enter a positive value if the image is on the other side from the lens and a negative value if the image is on the same side. HẢ ? s'2 Value Units %D Submit Request Answer Part B Calculate the image height. Express your answer to two significant figures and include the appropriate units. HA h' = Value Units %3D Submit Request Answer

The observer in figure is positioned so that the far edge of the bottom of the empty glass (not to scale) is just visible. When the glass is filled to the top with water, the center of the bottom of the glass is just visible to the observer. Find the height, H, of the glass, given that its width is W=4.8cm. Express your answer using two significant figures.

Use ray diagrams and the mirror equation to locate the position, orientation, and type of image of an object placed in front of a concave mirror of focal length 20 cm. Part C The object distance is 40 Cm; find the distance from the image to the mirror (positive for real image and negative for virtual image). Express your answer with the appropriate units. CH μA s' = Submit Part D Value m = cm Previous Answers Request Answer * Incorrect; Try Again; 26 attempts remaining ? The object distance is 40 Cm; find the magnification (positive for upright image and negative for inverted image). [ ΠΙΑΣΦ ?

Figure 0 1 of 1 Part A The mirror in the figure (Figure 1)deflects a horizontal laser beam by angle 0. What is the angle if 0 = 64°. Express your answer to two significant figures and include the appropriate units. Submit μÅ Value Provide Feedback Request Answer Units ? Next

An object stands on the common central axis of two thin, symmetric lenses. The object is placed 15.0 cm in front of the first lens (converging lens) whose focal length is 10.0 cm. The second lens is a diverging lens whose focal length is also 12.0 cm. The distance between the lenses is 40.0 cm. a.) Determine the characteristics of the final image by using thin-lens and magnification equations. Give your reasoning. b.) Find the location of the final image by using ray diagrams (sketch the rays clearly). Object f₁ 15 cm 1st Lens f₁ 40 cm 420 2nd Lens