Each second ………..tones of hydrogen are converted to helium in the Sun?
a) 600,000,000
b) 800,000,000
c) 10,00,000,000
d) 12,000,000,000
The most important nuclear fuel that powers the nuclear reaction in sun is:
NTS PST ----P-6---- 2016
a) Helium
b) Hydrogen
c) Nitrogen
d) Fluorine
The distance between stars is measured in……
a) sound speed
b) light year
c) km/second
d) none of these
After the sun the next nearest star is Alpha Centuari which is …….. away from the earth.
a) 3.5 light year
b) 4.5 light year
c) 5.5 light year
d) 6.6 light year
Solar system resides in which galaxy?
a) Milky way galaxy
b) Andromeda galaxy
c) Canis Major Dwarf Galaxy
d) Cygnus A
The Milky Way is …………………………
a) Spiral
b) Elliptical
c) Irregular
d) All of the above
