1.

A 60 watt bulb is hung over the center of a table 4 m xx 4 m at a height of 3 m . The ratio of the intensities of illumination at a point on the centre of the edge and on the corner of the table is

Answer»

`(17//13)^(3//2)`
`2//1`
`17//13`
`5//4`

ANSWER :a


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