(A) X
(B) 2X
(C) 4X
(D) X / 2
Author:
The energy of the highest energy photon of the Balmer series of hydrogen spectrum is close to:
(A) 3.4 eV
(B) 1.5 eV
(C) 0.85 eV
(D) 13.6 eV
It is known that ionization potential of hydrogen is 13.6 eV. When electron jumps from the first excited state to ground state, the emitted photon will have energy of:
(A) 3.4 eV
(B) 13.6 eV
(C) 10.2 eV
(D) 1.51 ev
Kalgoorlie in Australia is famous for its rich deposits of:
(A) Coal
(B) Gold
(C) Mercury
(D) Iron
Name the mountain that separates France and Spain:
(A) Alps
(B) Pyrenees
(C) Jura
(D) Vosges
Hydro-electric power provides more than 90% of the total power consumed in:
(A) Norway
(B) Sweden
(C) India
(D) UK
River Rhine of Europe drains into:
(A) North Sea
(B) Black Sea
(C) Caspian Sea
(D) Adriatic Sea
Moraine is:
(A) a tribe inhabiting the equatorial region
(B) the debris of fragments of rock material brought down with the
movement of a glacier
(C) a salt water lake in Arabia
(D) a nocturnal animal found in Amazon forests