Which one of the following of glass can cut ultraviolet rays?

Related Mcqs:

1. In hydrogen spectrum which one of the following series lies in the ultraviolet region ?

   A. Balmer series
   B. Pfund series
   C. Bracket series
   D. Lymann series

2. _________ is the atmospheric layer that absorbs most of the ultraviolet radiation that Earth receives from the Sun.

   A. Troposphere
   B. Stratosphere 
   C. Mesosphere
   D. Ionosphere

   Submitted by: Muhammad Abdullah

3. Which of the following Rays are more Penetrating?

   A. Beta rays
   B. Alpha rays
   C. Gamma rays
   D. X-rays

   Submitted by: Farjan Ahmed Soomro

4. Which of the following will be a better shield against gamma rays ?

   A. Ordinary water
   B. Heavy water
   C. Lead
   D. Aluminum

5. Which rays are trapped in our galaxy by magnetic waves?

   A. Alpha rays
   B. Gamma rays
   C. Cosmic rays
   D. None of these

   Submitted by: Malik Asghar Hussain

6. The light rays used for eliminating bacteria?

   A. X-rays
   B. infrared rays
   C. microwave radiation
   D. ultra-violet radiation

   Submitted by: Malik Asghar Hussain

7. X-rays are similar in nature to_______________?

   A. Cathode rays
   B. Positive rays
   C. γ-rays
   D. Beta rays

8. When X-rays are passed through successive aluminum sheets what happens to their thickness ?

   A. increases
   B. it decreases
   C. it remains same
   D. sometimes increases and sometimes decreases

9. 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

10. 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