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Subjective Question
An air plane, with a 20 m wingspread is flying at 250 ms^-1 straight south parallel to earth' s surface. The earth' s magnetic field has a horizontal component of 2 x 10 ^-5 Wbm ^-2and the angle of dip is 60^o. Calculate the induced emf between the tips of the wings.

Chemistry

Complete the Reaction
(NH₄)₂S₂O₈ + H₂O + MnSO₄

.............+ .............+ .............

Mathematics

Column Matching

	Column I		Column II
(i)	sin ^-1(2/3) + cos ^-1 (2/3)	(a)	sin ^-1 sin(/6)
(ii)	sin^-1 (sin(7 /6))	(b)	sin ^-1 sin (11/6)
(iii)	cos ^-1 (cos(/6))	(c)	tan ^-1 2 + cot ^-1 2

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