10. A cylindrical conductor of length I and uniform area of cross-
section A has resistance R. Another conductor of length 21 and
resistance R of the same material has area of cross section
(a) A/2
(b) 3A/2
(c) 2A
(d) 3A
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Answer:
3A/2 is a writer answer
Explanation:
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Answer:
the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.
change in direction of propagation of any wave as a result of its travelling at different speeds at different points along the wave front.
measurement of the focusing characteristics of an eye or eyes.
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