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

The pressure in a liquid at a given depth below the surface ……….

Moment of inertia of a thin hollow sphere about an axis passing through the edge along its tangent is –

The first derivative of position vector with respect to time is –

If R = P + Q, then which of the following is true?

A body of mass loo g is sliding from an inclined plane of inclination 30°. if u = 1.7, then the frictional force experienced is –

One Astronomical unit is

The magnitude of angular momentum is given by –

If error in measurement of radius of sphere is 1%. What will be the error in measurement of volume?

Two satellites of mass ml and m2(m1> m2) are revolving round the earth in circular orbits of r1 and r2 (r1 > r2) respectively. Which of the following statement is true regarding their speeds v1 and v2 ……..