Two circular disc A and B of same mass and sam ethickness are made of two different metals. Whose densites are `d_A and d_B(d_A>d_b)`. Which is greater `I_A or I_n`.

If two circular discs of same weight and thickness are made from metals having different densities, which disc will have large MI about its central axis?

Two solid spheres of the same mass are made of metals of different densities. Which of them has a larger moment of inertia about a diameter?

Two metalic wires of same length an d same cross - section but different Young modulus are pulled by same force . Which wire will be elangated more ?

Fill the gap The sum of n terms of an A.P. whose first term is a and common difference is d is

The moment of inertia of two rotating bodies A and B are I_A and I_B (I_a > I_B) and the angular momenta are equal. Which one has greater K.E.

The first term of an AP is a and its common difference is d then its 10th term will be a)d+10a b)a+10d c)a+9d d)d+9a

The masses of two bodies are m_1 and m_2 the distance between them is d. What is the gravitational force between them?

Samples of four metals A,B,C and D were taken and added to the following solutions one by one.The results obtained have been tabulated as follows. Use the table above to answer the following questions about metals A,B,C and D. (i)Which is the most reactive metal? (ii)What would you observe if B is added to a solution of copper (II) sulpahate? (iii)Arrange the metals A,B,C and D in the order of decreasing reactivity.

Calculate the potential difference between the junction B and D in the Wheatstone bridge.