CBSE Class 10 Science 2017 · Paper 531 · Question 28
Your school laboratory has one large window. To find the focal length of a concave mirror using one of the walls as screen, the experiment may be performed :
- (a)on the same wall as the window.
- (b)on the wall adjacent to the window.
- (c)on the wall opposite to the window.
- (d)only on the table as per laboratory arrangement.
Answer
(a) on the same wall as the window.
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