LUMINOUS

Luminal, a barbiturate drug is used as a/an

A luminous done shaped as a hemisphere rests on a horizontal plane. Its luminosity is uniform. Determine the illuminance at the centre of that plane if its luminance equals L and is independent of direction.

A certain luminous surface obeys Lambert's law. Its luminance is equal to L . Find: (a) the luminous flux emitted by a element DeltaS of this surface into a cone whose axis is normal to the given element and whose aperture angle is equal to theta , (b) the luminosity of such a source.

ER divides the intracellular space into luminal and extra luminal part

ER divides the intracellular space into two distince compartments, luminal……………and extra luminal……………….compartments.

Cell organelle that divides intracellular space of a cell into two compartment luminal space and extra luminal space