A student has difficulty reading the blackboard while sitting in the last row. What could be the defect the child is suffering from? How can it be corrected?

A student sitting in the last row of the class-room is not able to read clearly the writing on the blackboard. (a) Name the type of defect he is suffering from. (b) How can this defect by corrected ?

Anil cannot see the blackboard writing clearly, but he can see nearby objects clearly. What is the eye derect he is suffering from?

Dolly and Ritu are two friends studying together in V grade. They prefer to sit together. Dolly is uncomfortable in reading the blackboard when they are sitting on the last bench. Dolly is depressed fearing that they may turn blind one day. Ritu explains to her that the problem may be due to some minor eye defect and there is no cause for worry. Dolly accompanied by Ritu visits the doctor who prescribes specs of suitable power for her. Dolly is now all smiles and thanks Ritu. Read the above passage and answer the following questions : (i) Name the eye defect Dolly is suffering from. (ii) What could be the cause of this defect ? (iii) The far point of Dolly is 50 cm . What is the power of the lens she should use to read from the blackboard ? (iv) What values are displayed by Ritu ?

Vasantha is a domestic help (or maid) working at Mrs. Sharma's home. One day Vasantha complained to Mrs. Sharma that she had difficulty in reading the letter which she had received from her parents. Mrs. Sharma, realising that Vasantha had an eye defect, look her to an eye-specialist doctor. The doctor tested her eyes carefully and told Vasantha to wear spectacles for Vasantha. By wearing these spectacles, Vasantha could read and write easily. She was very happy and thanked Mrs. Sharma. (a) What could be the eye-defect Vasantha was suffering from ? (b) What could be the eye-defect reasons responsible for her eye-defect. (c) What type of lenses do you think doctor recommended for Vasantha's spectacles ? Why ? (d) Do you think Vasantha has to wear the spectacles all the time ? Give reason for your answer. (e) What values are displayed by Mrs. Sharma in this episode ?