List of top Questions asked in JIPMER- 2010

If $^{}_{92}U^{206}$ emits 8 $\alpha$-particles and 6 $\beta$-particles, then the resulting nucleus is

A uniform wire of resistance R and length L is cut into four equal parts, each of length $L/4$, which are then connected in parallel combination. The effective resistance of the combination will be

A body cools from 50?C to 49?C in 5 seconds. How long will it take to cool from 40?C to 39?C? (Assume temperature of surrounding to be 30?C and Newton?s law of cooling is valid).