Out of boiling point (I), entropy (II), `pH` (III) and `e.m.f` of a cell (IV), intensive properties are:

Out of boiling point (I), entropy (II), `pH` (III) and `e.m.f` of a cell (IV), intensive properties are:
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Out of boiling point (I), entropy (II), `pH` (III) and `e.m.f` of a cell (IV), intensive properties are: A ... B. I, II C. I, II, III D. All of these
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Explain the following properties i) Pour point ii) Viscosity iii) Ignition quality iv) Fire point

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Draw the ray diagram in each case to show the position and nature of the image formed when the object is placed: (i) at the centre of curvature of a concave mirror (ii) between the pole P and focus F of a concave mirror (iii) in front of a convex mirror (iv) at 2F of a convex lens (v) in front of a concave lens -Physics

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