Embibe Experts Solutions for Exercise 2: EXERCISE 16.2

Graph of position of image $\left(v\right)$ versus position of point object $\left(u\right)$ from a convex lens is shown. The focal length of the lens in $\left(\mathrm{cm}\right)$ is (Least count of scale is $0.1 \mathrm{cm}$)

In a resonance tube of length $2 \mathrm{m}$. When a tuning fork is used first length is measured as $6.2 \mathrm{cm}$ and second length is measured as$20 \mathrm{cm}$. The end correction obtained in the experiment is

In an experiment image distance was $0.80 \mathrm{m}$ for an object distance $0.20 \mathrm{m}$ from a concave mirror. Its focal length is

In an experiment a wire of diameter $5.0 \mathrm{mm}$ is stretched by a force of $200 \mathrm{kg}$ weight. $\mathrm{Y}=\left(12.5 \times {10}^{11}\right) \mathrm{dyne} {\mathrm{m}}^{-2}$. The percentage increase in its length is

In a meter bridge experiment, the one meter long wire used must possess

A wire has mass $(0.4\pm 0.004) \mathrm{g}$, radius $(0.6\pm 0.006) \mathrm{cm}$and length $(8\pm 0.08) \mathrm{cm}$. The maximum percentage error in the measurement of its density is

In case of determination of speed using resonances column, the major systematic errors are introduced due to effects of

In the Searle's experiment after every loading a gap of short interval is given to ensure that