Question

(vii) Observe the figure and answer the questions given below:
(a) What does this figure indicate?
(b) Which gadgets can be misused for these?
(c) Give two examples of such events.
(viii) What type of disasters are the following? Give one impact of each.
(a) Famine (b) War (c) Locust attack.
Answer the following sub-questions : (Any one)
(i) Answer the following questions :
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Answer 1

Answer:

(a) In the given figure we see that a ray of light is incident on the concave lens going towards the principal focus (actually it will not meet F2 but is directed towards it) that is F2 of the concave lens and the refracted ray is parallel to the principal optical axis of the concave lens.