Atomic Spectra Set 3 - ilmijazeera

Results

#1. The characteristic X-rays spectrum is due to

The illumination of the target metal by ultraviolet radiation

The bombardment of the target by proton

The bombardment of target by electron

The absorption of Y-radiation by the target metal

#2. Wave like characteristic of electron is demonstrated by

Line spectrum of atoms

Production of X-rays

Diffraction by crystalline solids

Photo electric effect

#3. Total number of series in hydrogen spectrum is

Three

Four

Five

Six

#4. The radiations emitted from hydrogen filled discharge tube show

Bound spectrum

Line spectrum

Continuous spectrum

Absorption spectrum

#5. If the ionization energy of H-atom is 13.6 eV, its ionization potential will be:

13.6 V

136.0 V

3.4 V

None of these

#6. Radiation with wavelength longer than red light

Ultraviolet rays

X-rays

Infrared radiation

Visible radiations

#7. Bracket series is obtained when all transition of electron terminate on

4th orbit

5th orbit

3rd orbit

2nd orbit

#8. X-rays are similar in nature to

Cathode rays

Positive rays

y-rays

a-rays

#9. In laser production, the state in which more atoms are in the upper state then in the lower one is called

Metal stable state

Normal state

Inverted population

All the above

#10. Reflecting mirrors in laser is used to

Further stimulation

Lasing more

For production more energetic laser

All the above

Finish