Q1 of 20 Page 67

Which of the following cannot be used for measurement of time?

Blinking of eyes cannot be used for measurement of time because it depends upon person to person and also it is not a constant event.

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2

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, minute hand as well as a second hand. Which of the following statement is correct for these clocks?

 3

Two students were asked to plot a distance-time graph for the motion described in Table A and Table B. Table A Table B.


The graph given in Figure 13.2 is true for

 4

A bus travels 54 km in 90 minutes. The speed of the bus is

 5

If we denote speed by S, the distance by D and time by T, the relationship between these quantities is