10.
11.
12.
13.
Which along the choice, listed the members of Electromagnetic spectrum in order of
decreasing wave length?
(ಹ) Radiowaves, Visible light, gamma rays, X-rays
(B) X-rays, gamma rays, visible light, radiowaves
(0) Radiowaves, visible light, X-rays, gamma rays
(0) Radiowaves, X-rays, visible light, gamma rays
SI unit of Radio activity :
(^) Gray ൯) Becquerel
(C) Sievert () Tesla
X-ray tube....
See more