AIEEE 2014 Examination |
All India Engineering / Architecture Entrance Examination (AIEEE) CBSE Guess > AIEEE > AIEEE Papers > 2010 > Physics AIEEE 2010 Physics Q. 5. A ball is made of a material of density Sol: Water must be below as Answer : (2) Q. 6. Let Sol: As for discharging RC circuit
Answer : (3)
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where
with 
oil and 
water representing the densities of oil and water, respectively. The oil and water are immiscible. If the above ball is in equilibrium in a mixture of this oil and water, which of the following pictures represents its equilibrium position?
and ball cannot float on oil because 
be the capacitance of a capacitor discharging through a resistor R. Suppose
is the time taken for the energy stored in the capacitor to reduce to half its initial value and
is the time taken for the charge to reduce to one-fourth its initial value. Then the ratio 
will be
