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प्रश्न
Two clocks A and B are shown in Figure 13.1. 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 statement is correct for these clocks?
विकल्प
A time interval of 30 seconds can be measured by clock A.
A time interval of 30 seconds cannot be measured by clock B.
A Time interval of 5 minutes can be measured by both A and B.
The Time interval of 4 minutes 10 seconds can be measured by clock A.
उत्तर
A Time interval of 5 minutes can be measured by both A and B.
Explanation:
Clock A can not measure seconds as it has not a second hand. Clocks A and B both have minute hands, so a time interval of 5 minutes can be measured by both of them.
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