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A lamp has a mean spherical candle power of 25, the total flux of light from the lamp is

The mean spherical candle power (MSCP) of a lamp is a measure of the total light output of the lamp in all directions. It is usually expressed in units of candelas (cd). The total flux of light from the lamp is a measure of the total amount of light emitted by the lamp and is usually expressed in units of lumens (lm).

The relationship between MSCP and total flux is given by:

Total flux = MSCP x 4π

where 4π is the solid angle that covers the entire sphere.

Therefore, if a lamp has a mean spherical candle power of 25, the total flux of light from the lamp is:

Total flux = 25 x 4π Total flux = 25 x 12.57 Total flux = 314 lm

Hence, the total flux of light from the lamp is 314 lumens.