Accuracy and Precision of Instruments

State whether true or false. If false, correct the statement.
With the help of vernier caliper, we can have an accuracy of $0.1 \mathrm{mm}$ and with screw gauge we can have an accuracy of $0.01 \mathrm{mm}$.

To calculate the effective length of pendulum, we measure :-

Closeness of two or more measured values is called as

The pitch of a screw gauge is $0.5 \mathrm{mm}$ and its head scale has $50$ divisions. The least count of the screw gauge is:

The most precise measurement among the following is 

The pitch of a screw gauge is $0.5 \mathrm{mm}$ and its head scale has $50$ divisions. The least count of the screw gauge is:

The period of oscillation of a simple pendulum is $T=2\pi \sqrt{\frac{L}{g}}$. Measured value of $L$ is $20.0 \mathrm{cm}$ known to $1 \mathrm{mm}$ accuracy and time for $100$ oscillations of the pendulum is found to be $90 \mathrm{s}$ using a wristwatch of $1 \mathrm{s}$resolution. The accuracy in the determination of $g$ is

The least count of a measuring scale is $1 \mathrm{mm}$. The heights two students is measured with it. What will be the error in the difference between their heights?

A student measures the length of a piece of a pencil by meter ruler, vernier calipers and screw gauge. Here, the _____ is the device with the highest accuracy and precision.

The vernier scale of an instrument has $50$ divisions which coincide with $49$ main scale divisions. If each main scale division is $0.5 \mathrm{mm}$, then using this instrument what would be the minimum inaccuracy (in $\mathrm{mm}$) in the measurement of distance?

The figure given above indicates good accuracy and poor precision.

The least count of a measuring scale is $1 \mathrm{mm}$. The heights two students is measured with it. What will be the error in the difference between their heights?

Write any two factors on which accuracy of a measurement depend?

The least count of a measuring scale is $1 \mathrm{mm}$. The heights two students is measured with it. What will be the error in the difference between their heights?

Define accuracy of measurement.

Cotyledons are also called-

To calculate the effective length of pendulum, we measure :-