Duduli

A function given by f(x)=x³ is called the cube function. The domain and range of cube are both equal to R(i.e. f(x):R→R). Since, y=x³ is an odd function, so its graph is symmetrical about opposite quadrant, i.e., “origin”, shown as:

According to complementary principle the wave and particle aspects of matter and light are complementary rather than contradictory i.e both the aspects are necessary for complete picture of a system. It follows that the same experiment used for particle nature of matter also gives the wave nature of matter. Thus particle & wave nature of matter gives a complete description of the same system. Hence wave & particle nature of matter are complementary rather than contradictory.

A nuclear reaction is the process of strong interaction of a stable nucleus with suitable high energy elementary particle resulting in the formation of a new nucleus and one or more new particles.

Photoelectric cell is an arrangement which converts light energy into electrical energy. It is known as electric eye. Photo emissive cells are of two types (i) Vacuum type and (ii) Gas filled type.

Radiation consists of quantum of energy. Quantum of energy (packet of energy or quanta) is known as photon. photon is a particle. It possesses wave nature also. Rest mass of a Photon is zero.

Minimum energy in electron volts required to excite an electron from ground state to a higher state is called critical potential.