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Physics
A thin semicircular conducting ring of radius R is falling with its plane vertical in horizontal magnetic induction . At the position MNQ the speed of the ring is V, and the potential difference developed across the ring is (a) Zero (b) BVR²/2 and M is at higher potential (c) RBV and Q is at higher potential (d) 2RBV and Q is at higher potential
Chemistry
Mention the products formed in the following: (i) Chlorine gas is bubbled through a solution of ferrous bromide (ii) Iodine is added to a solution of stannous chloride (iii) Sulphur dioxide gas, water vapour and air are passed over heated sodium chloride
Mathematics
If p = ⁿ⁺²p_n+2 ; q = ⁿp₁₁, r = ^{(n – 11)}p_{n – 11} and if p = 182qr then the value of r is (a) 10 (b) 12 (c) 15 (d) 18