A spherical mirror produces an image of magnification -1 on a screen placed at a a distance of 50cm from the mirror. (a) Write the type of mirror. (b) Find the distance of the image from the object. (c) What is the focal length? (d) Draw the diagram to show...
rishichand2005
Asked:
December 2022
The areas of two similar triangles are 121 cm2 and 64cm2. Find the ratio of their perimeters.