A bulb of 100 
is hanging at a height of one meter above the centre of a circular table of diameter 
. If the intensity at a point on its rim is 
, then the intensity at the centre of the table will be
a)
b)
c)
d)
A bulb of 100 is hanging at a height of one meter above the centre of a circular table of diameter . If the intensity at a point on its rim is , then the intensity at the centre of the table will be
a)
b)
c)
d)
Question ID - 153039 | SaraNextGen Top Answer
A bulb of 100 is hanging at a height of one meter above the centre of a circular table of diameter . If the intensity at a point on its rim is , then the intensity at the centre of the table will be
a)
b)
c)
d)
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A bulb of 100 |
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a) |
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b) |
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c) |
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d) |
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1 Answer
127 votes
Answer Key / Explanation : (d) -
(d)
The illuminance at 
And illuminance at point 
.png)
From equation (i) and (ii) 
127 votes
Answer Link
127