Generally the limit of visible spectrum is__________?

Related Mcqs:

1. The earth absorb radiation in Visible range but emit radiation at the same rate in the:

   A. Ultra voilet B. Gamma rays C. Infrared D. All of these Submitted by: Said wali shah...

2. When an atom absorbs energy the lines in the spectrum will appear which are_________________?

   A. Brighter B. Darker C. Colourless D. Hard to locate...

3. Spectrum is produced due to________________?

   A. Different wavelength B. Different colours C. Different intensities D. all have little contribution...

4. Pfund series are produced in the spectrum of hydrogen atom__________________?

   A. when electrons jump down to 2nd- orbit B. when electrons jump down to 3rd- orbit C. when electrons jump down to 4th- orbit D. when electrons jump down to 5th- orbit...

5. The IUPAC name of ethylene oxide is__________?

   A. Epoxy methane B. Oxoethene C. Methoxymethane D. Oxirane Submitted by: Muhammad Ali Kunbhar...

6. The PH of the 0.0032 M H2SO4 is__________?

   A. 3.2 B. 4.0 C. 2.198 D. 1.0 Submitted by: Muhammad Ali Kunbhar...

7. The heat energy produced when the human body metabolises 1 gram of fat is__________?

   A. 30 KJ B. 1 KJ C. 39 KJ D. 29 KJ Submitted by: Muhammad Ali Kunbhar...

8. The IUPAC name of pyridines is__________?

   A. Azolo B. Azine C. Azolidins D. Diazine Submitted by: Muhammad Ali Kunbhar...

9. The element used for the formation of alloys is__________?

   A. Iron B. Calcium C. Mercury D. Chromium Submitted by: Aamir Hullio...

10. The bond energy of Hydrogen molecule is__________?

    A. 110Kcal/mol B. 106Kcal/mol C. 104Kcal/mol D. 150KJcal/mol Submitted by: Aamir khan Hullio...