A convex lens has a focal length of 10 cm. an object 2 cm tall is placed in front of the lens. a) at what distance will the image appear inverted and 2 cm tall? b) at what distance will the image appear erect and have a magnification of 3?

Why is metal often used for cooking pan?

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight