The graph shows that Product A's sales peaked in Q4, making this statement true.

The graph indicates that July had the highest temperature and December had the lowest.

Product D's sales doubled from Q1 to Q2, as shown in the table.

A concave lens diverges light rays, and it has a negative focal length.

A converging lens can form both real images (when the object is outside the focal length) and virtual images (when the object is within the focal length).

A convex lens can produce both real images (when the object is outside the focal length) and virtual images (when the object is within the focal length).

A convex mirror always forms virtual images and has a negative focal length.

A diverging lens (concave) can only form virtual images.

A galvanic cell converts chemical energy into electrical energy spontaneously.

A plane mirror always forms a virtual image that is the same size as the object and is erect.

A concave lens always forms a virtual image that cannot be projected on a screen; hence, a real image cannot be formed.

A satellite in a stable orbit is acted upon by gravitational force, which provides the necessary centripetal force to keep it in orbit.

In an adiabatic process, the system is insulated from heat transfer, meaning no heat is exchanged with the surroundings.

In an adiabatic process, there is no heat exchange with the surroundings, and the temperature of the system changes due to work done on or by the system.

In an endothermic reaction, the enthalpy change (ΔH) is positive as heat is absorbed.

In an exothermic reaction, heat is released, so ΔH is negative.

For an ideal gas, the internal energy depends only on temperature, not on volume or pressure.

In an isobaric process, the pressure remains constant.

In an isochoric process, the volume of the system remains constant.

Real gases experience intermolecular forces, which causes deviations from ideal behavior.

The complex [Fe(CN)6]3- is a low-spin complex due to the strong field nature of CN- ligands, resulting in paired electrons.

In a balanced Wheatstone bridge, the potential difference across the galvanometer is zero, indicating no current flow.

A buffer solution is designed to resist changes in pH upon the addition of small amounts of acid or base.

A catalyst lowers the activation energy of a reaction, thereby increasing the rate without being consumed.

In a double-elimination tournament, a team must lose twice to be eliminated, allowing for a second chance.

A potentiometer can measure both AC and DC voltages, but it is primarily used for DC measurements due to its principle of operation.

A regular hexagon has all sides and angles equal, making the statement true.

A regular polygon has both equal sides and equal angles, making both statements true.

A saturated solution is in dynamic equilibrium where the rate of dissolution equals the rate of crystallization.

A Wheatstone bridge can be used for both AC and DC circuits to measure resistance.