Why do we need to measure extremely small interval?

Why do we need to measure extremely small interval?

Q. 10 Why do we need to measure an extremely small interval of times? Ans: We need an extremely small interval of time “delta t” (∆t) as the smaller is the time interval better resolution of the measurement is possible. In atomic/quantum physics, especially reactions take place in a very short amount of time.

What do we mean to measure small intervals of time?

The stopwatch is used to measure short time intervals. It can measure up to nanoseconds or even microseconds.

Why might scientists make a measurement more than one time?

Measuring a single item or event more than once to eliminate error in measuring. More measurements of a single event lead to greater confidence in calculating an accurate average measurement.

Why zero error is necessary in a measuring instrument?

Zero error is measured by calculating the distance between the main scale and the vernier scale. zero error is necessary for measuring instruments to get accurate results and it also helps in checking the instrument whether it is working right or whether it is working wrong.

What is zero error of a measuring instrument?

Zero error is defined as the condition where a measuring instrument registers a reading when there should not be any reading. In case of vernier calipers it occurs when a zero on main scale does not coincide with a zero on vernier scale.

Which clock is used to measure smaller time intervals?

Answer: Stop watch is type of clock which use to measure small time interval…..

What kind of watch will you use to accurately measure short intervals of time?

stopwatch
Answer: We will use stopwatch for measuring short intervals of time accurately. This watch is designed to measure the amount of time elapsed from a particular time when activated to until it is deactivated.

Why are units important in measurement?

Scientific measurements generally adhere to the International System of Units (SI units). It is important to always include units when recording data, doing calculations and reporting results! Units are globally recognized and necessary for sharing information between scientists around the world.

Why does a measurement give approximate value?

Measurements are approximations because we are always limited by the precision of the measuring tool we are using. For example, if you are using a ruler with centimetre and half-centimetre divisions (as you might find on a metre stick), you can only approximate the measurement to the nearest mm (0.1 cm).

What kind of watch will you use for short interval of time?

We will use stopwatch for measuring short intervals of time accurately.