Nature of Physical World and Measurement — Physics STD 11 — Question

When a particle moving in a vertical circle, the variable is/are

The error caused due to the shear carelessness of an observer is called as …… error.

Two vessels have equal volumes. One of them contains hydrogen at one atmosphere and the other helium at two atmospheres. If both the samples are at the same temperature, the rms velocity of the hydrogen molecules is …..

If force is the cause then the effect is –

Poisson’s ratio cannot have the value ……

If two objects moving with a velocities of VA and VB at an angle of 0 between them, the relative velocity is –

Which of the following is a unit of distance?

Pressure of an ideal gas is increased by keeping temperature constant. What is the effect on the kinetic energy of molecules?

In whirling motion, if the string is cut suddenly, the stone moves tangential to circle is an –