Complete the following sentences : (a) If half of a convex lens is cov

1.	Complete the following sentences : (a) If half of a convex lens is covered, the focal length ..................... change, but the intersity of image ...................... (b) A convex lens is placed in water. Its focal length will .................. (c) The focal length of a thin convex lens is ............... than that of a thick convex lens.
Answer» Complete the following sentences : (a) If half of a convex lens is covered, the focal length ..................... change, but the intersity of image ...................... (b) A convex lens is placed in water. Its focal length will .................. (c) The focal length of a thin convex lens is ............... than that of a thick convex lens.

Complete the following sentences : (a) If half of a convex lens is covered, the focal length ..................... change, but the intersity of image ...................... (b) A convex lens is placed in water. Its focal length will .................. (c) The focal length of a thin convex lens is ............... than that of a thick convex lens.

Answer»

Complete the following sentences :

(a) If half of a convex lens is covered, the focal length ..................... change, but the intersity of image ......................

(b) A convex lens is placed in water. Its focal length will ..................