Square garden of side 55 m has a path to metre wide inside the loan along its boundary find the area of the path also find the cost of planting grass in the rest of the garden at the rate of ₹8 per m²
7. We wish to obtain an erect image of an object, using a concave mirror of local length 15 cm. What should be the range of distance of the object from the mirror? What is the nature of the image? Is the image larger or smaller than the object? Draw a ray diagram to show the image formation in this case.