An object 3cm high is place 20 cm from a concave mirror of radius 24 cm. Find a) the focal length of mirror b) the image distance of object c) the nature of image

A convex mirror has a focal length of -4.7 cm. If an object is placed 11 cm from the surface, at what distance from the mirror will the image be located? 3)

A coin is 12 cm in front of a converging lens with focal length of magnitude 4.0 cm. Where is the image? A) 8.0 cm behind the lens B) 6.0 cm in front of the lens C) 6.0 cm behind the lens D) 4.0 cm in front of the lens

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An object is placed 25cm from a concave mirror with a radius of curvature of 15cm. Find the image distance and the magnification of the object.

A convex mirror has a radius of curvature of 40 cm. An object 5 cm high is placed 20 cm in front of the mirror. Determine: b) i) ii) ii) the focal length of the mirror the position of the image the magnification the height of the image the two (2) characteristics of the image formed. iv) v) (9 marks)

16) An object is located a distance do=5.1 cm in front of a concave mirror with a radius of curvature r = 24.5 cm. a) Write an expression for the image distance, di.  b) Numerically, what is the image distance, di, in centimeters?  c) Is this a real or virtual image?

A small candle is 32 cm from a concave mirror that has a radius of curvature of 22 cm. A) What is the focal length of the mirror? B) Where will the image of the candle be located? C) Will the image be upright or inverted?

+ Mirror Equation: Si So M; = = - Yo So Principle Ray: the ray from object to mirror that is parallel to the principle (optical) axis will reflect in a path that intersects the image focal point. Radius Ray: the ray from the object whose path is aligned curvature center point will reflect directly back to the center point on the principle (optical) axis. Central Ray: the ray from the object whose path is directed towards the center of the mirror (intersection with the principle axis) will reflect from the lens in the opposite direction with respect the optical path. Conventions: Quantity Sign Positive (+) Negative (-) Object distance So Real object Virtual object Image distance Si Real image Virtual image Focal length Concave mirror Convex mirror (opposite side of o,i) Radius of curvature R Convex Concave Object height Yo Erect object Inverted object Image height Yi Erect image Inverted image Magnification (transverse) MT Erect image Inverted image For the following mirror…

The focal length of a lens a. Approaches zero as the index of refraction increases b. Does not depend on the index of refraction O c. Increases as the index of refraction increases d. Decreases as the index of refraction increases