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Characteristics of Particles of Matter

Charatistics ...

Question

Charatistics of nature of particles of a matter?

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Solution

The characteristics of particles of matter are
(i) Particles of matter have spaces between them.
(ii) Particles of matter are continuously moving.
(iii) Particles of matter attract each other.
(iv) Kinetic energy of particles increases with increase in temperature.

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Q. Which of the following statement is incorrect?
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(c) the particles of some of the matter are moving constantly
(d) the particles of all the matter have spaces between them

Q. According to kinetic theory of matter particles of matter:

Dual nature of matter was proposed by de Broglie in 1923, it was experimentally verified by Davisson and Germer by diffraction experiment. Wave character of matter has significance only for microscopic particles. de Broglie wavelength or wavelength of matter wave can be calculated using the following relation:

λ = \frac{h}{m v}

m

v

' are the mass and velocity of the particle. de Broglie hypothesis suggested that electron waves were being diffracted by the target, much as

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Wave nature of electrons is shown by:

Q. State any two postulates of particulate nature of matter.

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