Moment of inertia of a circular wire of mass $$M$$ and radius $$R$$ about its diameter is

Initial angular velocity of a circular disc of mass $$M$$ is $${\omega }_1.$$ Then two small spheres of mass $$m$$ are attached gently to diametrically opposite points on the edge of the disc. What is the final angular velocity of the disc?

A particle of mass $$m$$ moves along line PC with velocity $$v$$ as shown. What is the angular momentum of the particle about P?

A solid sphere, a hollow sphere and a ring are released from top of an inclined plane (frictionless) so that they slide down the plane. Then maximum acceleration down the plane is for (no rolling)

Value of gas constant R is

Kinetic theory of gases proves

For an ideal gas, number of moles per litre in terms of its pressure P, gas constant R and temperature T is

Which of these will not react with acetylene ?

What is the product when acetylene reacts with hypochlorous acid ?

Acetylene does not react with :

The most stable ion is :

CH3 - Mg - Br is an organometallic compound due to :

The type isomerism present in nitropentammine chromium $$\left(\mathrm{I}\mathrm{I}\mathrm{I}\right)$$ chloride is :

Species acting as both Bronsted acid and base is :

1 M NaCL and 1 M HCL are present in an aqueous solution. The solution is

Let the solubility of an aqueous solution of Mg(OH)2 be x then its Ksp is :

In a hydrogen atom, if energy of an electron in ground state is -13.6 eV, then that in the 2nd excited state is

Uncertainty in position of a minute particle of mass 25 g in space is 10-5 m. What is the uncertainty in its velocity (in ms-1) (h = 6.6 $$\times$$ 10-34 Js)

$$C{e}^{+3},L{a}^{+3},P{m}^{+3}$$ and $$Y{b}^{+3}$$ have ionic radial in the increasing order as

The correct order of ionic radius is