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Physics
Multiple Choice Question with Only One Choice Correct A metallic circular disc having a circular hole at its centre rotates about an axis passing through its centre and perpendicular to its plane. When the disc is heated, its (a) moment of inertia increases but angular speed decreases (b) moment of inertia dereases but angular speed increases (c) moment of inertia and angular speed both increase (d) moment of inertia and angular speed both decrease
Chemistry
True or False : Lyman spectral series lies in the visible portion of the electromagnetic radiation.
Mathematics
Find the number of ways in which a bouquet from 11 different flowers is can be made so that it contains not less than six flowers.