Acoustics — Science STD 10 — Question

Force: vector then momentum: …….(i)……. Balanced force: resultant of the two forces is zero then……(ii)…….. : resultant forces are responsible for change in position or state.

When the object is placed between ………….. and ………… of a convex lens a virtual image will be formed.

The energy released in a nuclear fission process is about ______

For a normal eye, the value of least distance of distinct vision is ………..

Atomicity of Nitrogen is _____ whereas the atomicity of Helium is _____.

_____ is one-twelfth of the mass of C – 12 atom, an isotope of carbon which contains _____ protons and ____ neutrons.

_______ is a gaseous plant hormone, mainly concerned with maturation and ripening of fruits.

The abbreviation of BARC is _____.

If a force F acts on a body for a time t’s then the impulse is ………

_____ is a substance added to the ore to reduce the fusion temperature and to remove impurities.