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

Related Mcqs:

1. How much solar flux absorb by earth’s  surface is used to drive hydrologic cycle: 

   A. 1/2sec
   B. 1/3rd
   C. 1/4th
   D. 1/5th

   Submitted by: Said wali shah

2. Elements which emit natural radioactivity are known as __________ ?

   A. Radio elements
   B. Active elements
   C. Radioactive elements
   D. Nuclear elements

   Submitted by: Rashid Mehmood

3. Generally the limit of visible spectrum is__________?

   A. 1000 to 300 A°
   B. 3800 to 7600 A°
   C. 8000 to 10,000 A°
   D. 12,000 to 15,000 A°

   Submitted by: Muhammad Ali Kunbhar

4. The energy of one mole of photons of radiation, whose frequency is 4×10 14 Hz, is ___________?

   A. 159.6kJ
   B. 135.5 KJ
   C. 110.5 KJ
   D. 80.4 KJ

   Submitted by: Muhammad Ali Kunbhar

5. When the radiation of light is passed through a prism, it undergoes __________?

   A. reflection
   B. interference
   C. diffraction
   D. refraction

   Submitted by: Shumail Farhan

6. Which one of the following radiation has the longer wavelength?

   A. infra red
   B. visible
   C. x-ray
   D. ultra violet
   E. gamma rays

   Submitted by: Dr.Tassawer-e-Meran

7. The unit of the rate constant (k) is same as that of rate of reaction________________?

   A. First order reaction
   B. Second order reaction
   C. Zero order reaction
   D. Third order reaction

8. _____________ surfactants perform well over a wide range water hardness and PH?

   A. Anionic
   B. Cationic
   C. Nonionic
   D. Neutral

   Submitted by: Muhammad Ali Kunbhar

9. The range of acid PH on PH scale is____________?

   A. 9 to 8
   B. 6 to 7
   C. 1 to 6
   D. 1 to 10

   Submitted by: Chakar Hussain Shar

10. What is the abundant form of matter on earth ?

    A. Gas
    B. Liquid
    C. Solid
    D. Plasma