GK

Blue dwarfs’ refer to

(a) Caucasians

(b) Young stars

(c) Old stars

(d) None of these

The group of small pieces of rock revolving round the sun between the orbits of Mars and Jupiter are called?

(a) Meteors

(b) Comets

(c) Meteorites

(d) Asteroid

A Comet

(a) Has a tail always pointing away from the sunP

(b) Has a tail always pointing towards the sun

(c) Has no tail at all

(d) None of these

The comet, named after Edmund Halley reappears after a time interval of every

(a) 36 years

(b) 76 years

(c) 55 years

(d) 56 years

When and by whom were the rings of Saturn discovered?

(a) Galileo, 1610

(b) Edmund Halley, 1682

(c) Newton, 1682

(d) Tycho Brahe: 1590

The visible part of the sun is called?

(a) ionosphere

(b) Hydrosphere

(c) Photosphere

(d) Troposphere

What name is given to the path of the sun amongst the stars in our galaxy?

(a) Celestial sphere(b) Ecliptic

(c) Elliptical path

(d) Zodiacal signs

The planet Neptune’s orbit around the sun takes about

(a) 247.7 years

(b) 165 years

(c) 84 years

(d) 29.5 years

According to new scientific research that there is present water on the surface of except earth planet

(a) Mars

(b) Venus

(c) Mercury

(d) Jupiter

The temperature of Sun’s center is 15 million C and the temperature of outer surface of sun is?

(a) 4000 to 5000 С

(b) 4500 to 5000 C

(c) 5000 to 5500 С

(d) 5500 to 6000 С

Which planet is the least dense?

(a) Mercury

(b) Mars

(c) Saturn

(d) Earth

A light year is equal to

(a) 6 million, million kms

(b) 7,50 million, million kms

(c) 9.50 million, million kms

(d) 11 million, million kms