Steradian is the unit of_______________
(A) Solid angle
(B) Liquid angle
(C) Gas angle
(D) Plain angle
Siemens is the unit of__________________
(A) Electrical Conductance
(B) Magnetic Conductance
(C) Electrical Capacitance
(D) Magnetic Capacitance
Tesla is the unit of_________________________
(A) Magnetic Field Strength
(B) Electric Field Strength
(C) Gravitational Field Strength
(D) Nuclear Field Strength
Which one of the following is not a unit of distance
(A) Parsec
(B) Astronomical Unit
(C) Light Year
(D) Foot Candle
Constellations referred to as zodiac, are__________
(A) Imaginary regions that encompass the path of the planets
(B) Signs of Roman gods
(C) A group of stars
(D) None of these
‘Black holes’ refers to_______________
(A) Holes occurring in heavenly bodies
(B) Bright spots on the sun
(C) Collapsing object of high density
(D) Collapsing object of low density
The phases of the moon are partially the result of the____________
(A) Changes in the shape of the moon
(B) Revolution of the moon around the earth
(C) Variations in the moon’s gravitation
(D) Variations in the speed of rotation of the moon
The top atmosphere of the Earth directly reflects back into space nearly what part of the total amount of sun’s energy coming to it
(A) 10%
(B) 20%
(C) 30%
(D) 50%
What is the temperature at the center of the Sun
(A) 6 million °C
(B) 10 million °C
(C) 15 million °C
(D) 20 million °C