Manoj is a twelve year old boy. He obtained a lens from one of his friends. Manoj held the lens towards him and start looking at sun, his brother snatched away the lens from him. The brother firmly told Manoj not to do it again. (a) What could be the nature of the lens ? (b) Why did the brother snatch the lens from Manoj ? (c) What could have happened toManoj if his brother had not snatched away the lens from him ? Explain. (d) What values are shown by Manoj's brother ?

Manoj is a twelve year old boy. He obtained a lens from one of his fri

1.	Manoj is a twelve year old boy. He obtained a lens from one of his friends. Manoj held the lens towards him and start looking at sun, his brother snatched away the lens from him. The brother firmly told Manoj not to do it again. (a) What could be the nature of the lens ? (b) Why did the brother snatch the lens from Manoj ? (c) What could have happened toManoj if his brother had not snatched away the lens from him ? Explain. (d) What values are shown by Manoj's brother ?
Answer» Solution :(a) It is convex lens (which is a CONVERGING lens). (b) The brother snatched away the convex lens from Manoj because looking at the sun through convex lens could damage the eye of Manoj. (c) Convex lens is a converging lens. It could converge (or CONCENTRATE) a lot of sun's rays or sun's ENERGY into Manoj's eyes. This energy could damage the delicate retina of eyes and even make him blind. (d) The values shown by Manoj's brother are (i) AWARENESS (having knowledge) of the properties of convex lens and (II) Concern for the eyes of his brother Manoj.