Experimental Physics

The circular divisions of shown screw gauge are 50 . It moves 0.5 mm on main scale in one rotation. The diameter of the ball is

The length of the second's pendulum is decreased by 0.3 cm when it is shifted to Chennai from London. If the acceleration due to gravity at London is $981 \mathrm{~cm} / \mathrm{s}^2$, the acceleration due to gravity at…

Graph of position of image vs position of a point object from a convex lens is shown in the figure. The focal length of the lens is -

Two tangent galvanometers A and B have coils of radii 8 cm and 16 cm respectively and resistance $8\mathrm{}\mathrm{\Omega}$ each. They are connected in parallel with a cell of emf 4 V and negligible internal…

A galvanometer coil has a resistance$90 \Omega\,$and full-scale deflection current $10 \mathrm{mA}$. A $910 \Omega\,$resistance is connected in series with the galvanometer to make a voltmeter. If the least count of the…

Consider the vernier calipers as shown, the instrument has no zero error. What is the length of the rod (in$\mathrm{mm}$) shown, if $1 \mathrm{msd} = 1 \mathrm{mm}$? Use $7 \mathrm{msd} = 8 \mathrm{vsd}.$

The figure shown below is a screwgauge. When the circular scale division matches the main scale at 43, the$6.5\operatorname{m}\,m$mark on the main scale is just visible. Themain scale has…

A galvanometer coil has a resistance 90 $\Omega\,$and full scale deflection current 10 mA. A 910 $\Omega\,$resistance is connected in series with the galvanometer to make a voltmeter. If the least count of the voltmeter…

Consider the vernier callipers shown below. The instrument has no zero error. If$1 m.s.d=1 \mathrm{mm}$and $7 m.s.d = 8 v.s.d$, then what is the length (in $\mathrm{mm}$) of the rod shown in the figure?…

Two tangent galvanometers $A$and $B$ have coils of radii $8 \mathrm{cm}$ and $16 \mathrm{cm}$ respectively and resistance $8\mathrm{}\Omega\,$ each. They are connected in parallel with a cell of emf $4 V$ and negligible…

A convex lens forms inverted image of a real object on a fixed screen. The size of image is $9 \mathrm{cm}$. When lens is displaced $40 \mathrm{cm}$ along principle axis it again forms a real image of size $4…

In the measurement of resistance of a wire using Ohm's law, the plot between $V$ and $I$ is drawn as shown, then resistance of given wire will be