Of petrol is 11 x 103 kcal per kg calculate the entienu
[4]
the engine.
ans: 31.15%<...
Physics, 27.08.2019 05:30 aambitiouss
Of petrol is 11 x 103 kcal per kg calculate the entienu
[4]
the engine.
ans: 31.15%
18.
unit 3: geometric optics
1. reflection at curved mirrors
19.
formulae
l os
1. relationship between focal length and radius of
curvature , f= .
2
1
1
n
2. mirror formula,
+
< 1
<
3. magnification, m = ñ
= u
<
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an erect object placed before a concave mirror between its
pole and the focus. hence write down the nature of image so
formed.
[2]
Answers: 1
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