Q. The graph shown was obtained from the experimental measurements of the period of oscillation T for different masses M placed in the scale on the lower end of the spring balance. The most likely reason for the line not passing through the origin is that

A) Spring did not obey Hook’s law
B) Amplitude of oscillation was too large
C) Clock used needed regulation
D) Mass of the pan was not neglected
Explanation

(d) When no weight is placed in pan, and $T^{2}$ shows some value, it means, the pan is not weightless and hence, the mass of the pan cannot be neglected.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.