Question

I want answers of all the questions. Thats my HHW. Plzz help me.

Answer 1

1.watt(Wh)
2.convex mirrors
3.convex lens because Convex lens can form an erect, enlarged and virtual image of an object when an object is placed at its focus. 
4 to 9(b) i am not attempting because i am not perfect with them so hey might be wrong
10.(i)concave
     (ii)concave
     (iii)concave
     (iv)concave
     (v)convex
     (vi)convex


hope it was helpful 

and im sorry that i could not give u all the answers 

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