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Q.

Two clocks A and B are shown in the figure. Clock A has an hour and a minute hand whereas clock B has an hour hand, a minute hand as well as a second hand. Which of the following statements is correct for these clocks?


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a

Time interval of 30 seconds can be measured by clock A

b

Time interval of 30 seconds can be measured by clock A

c

Time interval of 5 minutes can be measured by both A and B

d

Time interval of 4 minutes 10 seconds can be measured by clock A 

answer is C.

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Detailed Solution

For given clocks, the correct statement is Time interval of 5 minutes can be measured by both A and B.
To measure the 5 minutes interval, a clock needs a minute's hand. We can say that since both the clock has a minute hand, we can estimate 5 minutes. As Clock A lacks a second hand, it cannot measure time in seconds. Therefore the other possibilities are incorrect.
 
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Two clocks A and B are shown in the figure. Clock A has an hour and a minute hand whereas clock B has an hour hand, a minute hand as well as a second hand. Which of the following statements is correct for these clocks?