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Questions

Physics
Column Matching
Match the physical quantities given in Column I with their SI units in Column II.
  Column I   Column II
(a) Specific heat (p) J K-1
(b) Latent heat (q) J kg-1 K-1
(c) Molar specific heat (r) J mol-1 K-1
(d) Thermal capacity (s) J kg-1

Chemistry
Multiple Choice Question
Which of the following is not correct?
(a) The metallic conduction is due to the movement of electrons in the metal.
(b) The electrolytic conduction is due to the movement of ions in the solution.
(c) The current carrying ions are not necessarily discharged at the electrodes.
(d) The metallic conduction increases with increase in temperature, whereas that of electrolytic conduction decreases with temperature.

Mathematics
Passage Based Question
Passage I
If m, n, r N, then
mC0 nCr + mC1 nCr - 1 + ..... + mCr nC0
= coefficient of xr in (1 + x)m (1 + x)n
= coefficient of xr in (1 + x)m + n
= m + nCr
We can use similar techniques to evaluate product of binomial coefficients.
Let An = nC0 nC1 + nC1 nC2 + ..... + nCn-1 nCn and , then n equals
(a) 8, 4 (b) 4, 6
(c) 2, 4 (d) 8, 6
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