1.

A body cools in 3 minutes from 90^° C-80^° C . The temperature reduces to 70^° C in next (if the temperature of surrounding is 20^° C) a-2.54 minutes b-2minutes c-6minutes d-3.54 minutes

Answer» A body cools in 3 minutes from 90^° C-80^° C . The temperature reduces to 70^° C in next (if the temperature of surrounding is 20^° C) a-2.54 minutes b-2minutes c-6minutes d-3.54 minutes


Discussion

No Comment Found