Advertisements
Advertisements
प्रश्न
A student calculates experimentally the value of density of iron as 7.4 gcm−3. If the actual density of iron is 7.6 gcm−3, calculate the percentage error in the experiment.
उत्तर
Experimental value of density of iron = ρ1 = 7.4 gcm−3
Actual value of density of iron = ρ2 = 7.6 gcm−3
Absolute error = ρ2 − ρ1 = 7.6 − 7.4 = 0.2 gcm3
Percentage error = `"Absolute error"/"Actual value"xx100`
= `0.2/7.6xx100`
= `100/38`
= 2.63%
APPEARS IN
संबंधित प्रश्न
It takes 0.2 s for a pendulum bob to move from the mean position to one end. What is the time period of the pendulum?
Define the following in connection with a simple pendulum.
Effective length
State the two ratios of a scale, which are not suitable for plotting points.
Moon has no atmosphere and acceleration due to gravity at its surface is one-sixth that at the earth's surface. When a pendulum is taken from earth to moon surface, its time period will:
Define the following terms with reference to a simple pendulum:
Amplitude
If a pendulum takes 0.5 s to travel from A to B as shown in the following figure, find its time period and frequency.
