Mark out the correct options.
(a) Luminous flux and radiant flux have same dimensions.
(b) Luminous flux and luminous intensity have same dimensions.
(c) Radiant flux and power have same dimensions.
(d) Relative luminosity is a dimensionless quantity.
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Answer:
the correct one is : luminous flux and luminous intensity have same dimensions
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The correct options are as follows
(b) Luminous flux and luminous intensity have same dimensions.
(c) Radiant flux and power have same dimensions.
(d) Relative luminosity is a dimensionless quantity.
Explanation:
a) No, the light flux has the luminous intensity dimension (cd /sr). The Radiant Flux Factor is watt.
b) Yes, both Luminous flux and luminous intensity have the same dimension, that is to say cd /sr.
c) Yes, both Radiant flux and power have same power dimensions.
d) Yes, it is a combination of quantities of the same kind.
Therefore the correct answer is Option (b) Luminous flux and luminous intensity have same dimensions (c) Radiant flux and power have same dimensions and (d) Relative luminosity is a dimensionless quantity
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