The radiations emitted form hydrogen filled discharge tube show____________?

Related Mcqs:

Hydrogen atom does not emit X-rays because _________________?

A. its energy levels are too close to each other B. its energy levels are too far apart C. it is too small in size D. it has a single electron...

The penetrating power of X-rays depends on their______________?

A. applied voltage B. frequency C. source D. all of the above...

The characteristic X-rays spectrum is due to_____________?

A. The illumination of the target metal by ultra-violet radiation B. The bombardment of the target by protons C. The bombardment of target by electrons D. The absorption of radiation by the target metal...

The minimum wavelength of X-rays produced by the bombardment of electrons on the screen of a television set where the accelerating potential is 2.0K V will be______________?

A. 6.2 x 10-10m B. 9.1 x 10-18m C. 3.11 x 10-10m D. 4 x 10-10m...

Reflecting mirrors in laser is used to______________?

A. Further stimulation B. Lasing more C. For producing more energetic lasers D. All...