A lamp is hanging at a height of 40 cm from the centre of the table. If its height is increased y 10 cm, the illuminance of the lamp will decreased by
a)
10%
b)
20%
c)
27%
d)
36%
A lamp is hanging at a height of 40 cm from the centre of the table. If its height is increased y 10 cm, the illuminance of the lamp will decreased by
a)
10%
b)
20%
c)
27%
d)
36%
Question ID - 152387 | SaraNextGen Top Answer
A lamp is hanging at a height of 40 cm from the centre of the table. If its height is increased y 10 cm, the illuminance of the lamp will decreased by
a)
10%
b)
20%
c)
27%
d)
36%
|
A lamp is hanging at a height of 40 cm from the centre of the table. If its height is increased y 10 cm, the illuminance of the lamp will decreased by |
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|
a) |
10% |
b) |
20% |
c) |
27% |
d) |
36% |
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