Lab Activity: To Determine Focal Length of a Convex Lens by Plotting Graphs

Why is it necessary to introduce high resistance from the resistance box in the circuit during the half deflection method?

Which one of the following is the incorrect step in the procedure of finding the galvanometer resistance by half deflection method?

Why a high value of resistance in series with the galvanometer is preferred while finding the galvanometer resistance by half deflection method?

Which one of the following must be the first step in finding the resistance of the galvanometer using half deflection method?

The deflection produced in a galvanometer is directly proportional to which one of the following factors?

Which one of the following apparatus is not required for finding the resistance of a galvanometer by the half deflection method?

The circuit diagram for finding the galvanometer resistance is drawn below.

Which one of the following is a correct step in this procedure?

Which one of the following precautions must be taken to find the resistance of a galvanometer?

Which one of the following steps is taken to reduce the current through the galvanometer to half of its previous value in the half-deflection method?

Readings for shunt resistance $\left(S\right)$ and the resistance box $\left(R\right)$ are taken to find the galvanometer resistance by the half-deflection method. To calculate the resistance of the galvanometer using the graphical method, which one of the following graphs must be plotted?

When using the Half-Deflection Method, what can be inferred if the galvanometer does not show a half-scale deflection?

When using the Half-Deflection Method, which of the following actions can introduce an error in the measurement of galvanometer resistance?

Which precaution is necessary to achieve accurate results when using the Half-Deflection Method?

Which of the following is the primary apparatus used in the Half-Deflection Method to find galvanometer resistance?

A battery with emf $V_E$ and resistance $R$ is used to deflect the galvanometer by angle $\theta$, allowing one to determine the resistance $G$ of the device using the half deflection method. The equation links $G$, $R$ and $S$, where $S$ is shunt of resistance required to obtain half deflection will be

A student has chosen different scales on two axes in a $\frac{1}{u}$ Vs $\frac{1}{v}$ graph for a convex lens. Which of the following statements is correct for the graph?

The graph between $\frac{1}{u}$ and $\frac{1}{v}$ is drawn for various positions of the object in front of a convex lens. The focal length of the lens will be

Observations are to be taken to plot a $u-v$ graph for the convex lens. Which of the following options is correct for the position of the object needle?