Advertisements
Advertisements
प्रश्न
What is mean by the dual nature of matter?
Advertisements
उत्तर
- Material particles show wave-like nature under certain circumstances. This phenomenon is known as wave-particle duality of matter or the dual nature of matter.
- The wave associated with matter is called matter-wave. The wavelength associated with the matter of mass m moving with velocity v is given by,
`lambda = "h"/"p" = "h"/"mv"`
APPEARS IN
संबंधित प्रश्न
A photocell is used to automatically switch on the street lights in the evening when the sunlight is low in intensity. Thus it has to work with visible light. The material of the cathode of the photocell is ______.
If NRed and NBlue are the numbers of photons emitted by the respective sources of equal power and equal dimensions in unit time, then ______.
Choose the correct option.
The equation E = pc is valid ______.
The work function of a metal is 4.2 eV. Its threshold wavelength will be ______.
Ultraviolet radiation of 6.2 eV falls on an aluminum surface (work function 4.2 eV). The kinetic energy in joules of the fastest electron emitted is ______
In what year did Hertz perform experiments on the generation and detection of electromagnetic waves?
Which experiments led to important discoveries in atomic structure?
Where did a fluorescent glow appear during electric discharge through low-pressure gas?
What determined the colour of the fluorescent glow, and what colour was observed for soda glass?
What were the rays attributed to radiation originating from the cathode called?
Who discovered cathode rays in 1870?
What did Crookes suggest in 1879 about cathode rays?
Which British physicist confirmed that cathode rays consisted of fast-moving negatively charged particles?
What value is given for the speed of light?
What is the presently accepted value of the specific charge \[e/m\] for cathode ray particles?
What did the independence of \[e/m\] from cathode material and gas suggest?
Who named these particles electrons in 1897?
What did J. J. Thomson suggest about electrons in 1897?
What did Millikan find about the charge on an oil droplet?
What value was measured for the elementary charge?
What did Millikan’s oil-drop experiment establish?
