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Consider two hot bodies B(1) and B(2) wh...

Consider two hot bodies `B_(1)` and `B_(2)` which have temperature `100^(@)"C"` and `80^(@)"C"` respectively at t = 0. The temperature of surroundings is `40^(@)" C"`. The ratio of the respective rates of cooling `R_(1)` and `R_(2)` of these two bodies at` t = 0` will be

A

`R_(1) : R_(2) = 3 : 2`

B

`R_(1) : R_(2) = 5 : 4`

C

`R_(1) : R_(2) = 2 : 3`

D

`R_(1) : R_(2) = 4 : 5`

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