Question

To verify the formula for the Volume of a cuboid by activity method​

Answer 1

Answer:

A 5.0 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 20

cm. The distance of the object from the lens is 30 cm. By calculation determine

(i) the position and (ii) the size of the image formed.

Answer 2

Answer:

Let the length of the cuboid be l units, breadth b units and height h units, then. Total Surface Area: Surface area (SA) or total surface area (TSA) of the cuboid. = Sum of all faces of the cuboid. = lb + lb + bh + bh + lh + lh. ⇒ SA or TSA = 2 (lb+bh+hl) sq.units.