The inter particle spaces are greater in -

Two particles are projected in air with speed u at angles theta_(1) and theta_(2) (both acute) to the horizontal, respectively. If the height reached by the first particle is greater than that of the second, then which one of the following is correct ?

Calculate the wavelength of X-rays which produces a first order diffraction angle 2theta equal to 16.8^(@) for a crystal. Inter particle distance of crystal is 200 pm.

The diameter of perinuclear space is

The inter molecular forces present in inert gases are

The nephridia present on both sides of inter segmental septa are located in