| 1 |
Balmer series lies in |
Visible region
Invisible region
Ultraviolet region
Infrared region
|
| 2 |
The shortest wave length is Bracket series has wave length. |
16/Rn
Rn/16
16 Rn
4 Rn
|
| 3 |
Balmer series lies in region of electromagnetic spectrum. |
Infrared
Visible
Ultraviolet
Fra infrared
|
| 4 |
Application of wave like nature of particle is |
Photodiode
Optical microscope
Electron microscope
Compound microscope
|
| 5 |
The principle regarding the dual nature of light was first discovered by |
Heisenberg
Compton
J.J.Thomson
De-Broglie
|
| 6 |
Photodiode is used for wave nature of. |
Light
Thermal radiation
Radi waves
Sound waves
|
| 7 |
The wavelength associated with the protons moving at speed of 40 m/s is. |
7.20 nm
9.02
15.7 nm
17.3 nm
|
| 8 |
Which is the most refined form of matter. |
Smoke
Fog
Light
Electron
|
| 9 |
Wave nature of light appears in |
Pair production
Compton effect
Photo electric
Interference
|
| 10 |
In an nihilation emitted photons moves in opposite directions to conserve. |
Mass
Charge
Energy
Momentum
|
| 11 |
The existence of positron in 1928 was predicted by |
Anderson
Dirac
Chadwick
Plank
|
| 12 |
Anti particle of electron is |
Proton
Photon
Neutron
Positron
|
| 13 |
A positron is an anti particle of. |
Proton
Electron
Neutron
Photon
|
| 14 |
Antiparticle of electron is. |
proton
Photon
Positron
Neutron
|
| 15 |
A positron is an anti particle of. |
Proton
Electron
Neutron
Photon
|
| 16 |
The materialization of energy take place in the process of. |
Photo electric effect
Compton Effect
Pair production
Annihilationof matter
|
| 17 |
The photon with energy greater than 1.02 MeV can interact with matter as. |
Photoelectric effect
Compton effect
Pair production
annihilation of matter
|
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