An isotropic source of 2 candela produces light flux equal to

One micron is equal to –

"Light-year" is a unit of :

One Nanometer is equal to how many metres?

The unit of the force constant k of a spring is

Match List- I with List- II and select the correct answer using the codes given below: List - I (Instrument) A. Stethoscope B. Sphygmomanometer C. Caratometer D. Luxmeter List - II (Measuring quantit…