How does the image distance (di) of a convex lens compare with the image distance of a concave lens? a. the image distance of the convex lens is positive, and that of the concave lens is negative. b. both are negative for a virtual image. c. both are positive for a virtual image d. the image distance of the convex lens is negative, and that of the concave lens is positive.

Explanation:

Image distance of a mirror is defined as the distance between the optical center and the formed image.

The image formed by a concave lens is virtual always. We can say that the image distance for a concave lens is negative. The convex lens or the converging lens can form both real and virtual images. So, the image distance  for a convex lens can be either positive or negative. Generally, the image distance for convex lens is positive.

So, the correct option is (a) "  The image distance of the convex lens is positive, and that of the concave lens is negative ".

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle