Telangana Board Solutions for Chapter: Units and Measurement, Exercise 1: EXERCISES

A stick has a length of $12.132 \mathrm{cm}$ and another has a length of $12.4 \mathrm{cm}$. If the two sticks are placed end to end what is the total length (in $\mathrm{cm}$)?

A stick has a length of $12.132 \mathrm{cm}$ and another has a length of $12.4 \mathrm{cm}$. If the two sticks are placed side by side, what is the difference in their lengths (in $\mathrm{cm}$)?

Each side of a cube is measured to be $7.203 \mathrm{m}$. What is the total surface area of the cube (in ${\mathrm{m}}^2$), to appropriate significant figures?

Each side of a cube is measured to be $7.203 \mathrm{m}$. What is the volume of the cube (in ${\mathrm{m}}^3$), to appropriate significant figures?

The measured mass and volume of a body are $2.42 \mathrm{g}$ and $4.7 {\mathrm{cm}}^3$ respectively with possible errors $0.01 \mathrm{g}$ and $0.1 {\mathrm{cm}}^3$. Find the percentage of maximum error in density (round off to the closest natural number and write the numerical value of percentage in the answer.)

The error in measurement of radius of a sphere is $1\%$. What is the ($\%$) error in the measurement of Volume? ( Write just the numerical value of percentage.)

The percentage error in the mass and speed are $2\%$ and $3\%$ respectively. What is the maximum error (in $\%$) in kinetic energy calculated using these quantities? ( Write the numerical value of percentage in the answer.)

One mole of an ideal gas at standard temperature and pressure occupies $22.4 \mathrm{L}$ (molar volume). If the size of the hydrogen molecule is about $1 \stackrel{0}{\mathrm{A}}$ , what is the ratio molar volume to the atomic volume of a mole of hydrogen?(Write your answer in the order of ${10}^4$ and in nearest integer)