Question

62.) telentify THREE MARK
62.) considy the parts of eye
THREE MARK
1. (a) Two lenses have power of i) +2 D ii) -4D What is the nature and focal
length of each lens (b) An object is kept at a distance of 100cm for lens of
power-4D. Calculate image distance.
2. (a) A concave mirror produces three times enlarged image of an object
placed at 10cm. in front of it. Calculate the focal length of the mirror.
(b) Show the formation of the image with the help of a ray diagram when
object is placed 6 cm away from the pole of a convex mirror.
3. A beam of white light falling on a glass prism gets split up into seven
colours marked 1 to 7 as shown in the diagram​

Answer 1

Answer:

Explanation:

Given below