PART - 2 CH - 14 Waves — Physics STD 11 Science — Question

Fill in the blanks using the word (s) from the list appended with statement: For solids with elastic modulus of rigidity, the shearing force is proportional to . . . while for fluids it is proportional to . . . (shear strain/ rate of shear strain).

SONAR works on the principle of ______.

The tangential acceleration of a particle moving with constant speed in a circular of path radius R will be ............... .

Backward dragging force of viscosity acting on a spherical body of radius r moving with velocity v through a fluid of viscosity n is equal to _________________.

The coefficient of areal expansion of substance is equal to its coefficient of linear expansion ____________

When distance covered by a moving object in a particular time interval is much greater than size of the object, then object is said to be­ ______.

Any gas which does not follow the ideal gas equation_________ is called.

The internal energy of a system is the sum of the energies of its molecules.

The magnitude of centripetal force is ................ distance between the planet and the sun .

Fill in the blanks by suitable conversions: 1m = ______ light year