The constellation ‘Sapta Rishi’ is known to Westerners as the

(1) Seven Monks

(2) Alpha Centauri

(3) Big Dipper

(4) Small Bear

Which of these is a dwarf planet?

(1) Neptune

(2) Titan

(3) Eris

(4) Hydra

Stars twinkle but planets do not twinkle because

(1) they emit light of a constant intensity

(2) their distance from the earth does not change with time

(3) they are very far away from the earth resulting in decrease in the intensity of light

(4) they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable

The outermost layer of Sun is called

(1) Lithosphere

(2) Chromosphere

(3) Photosphere

(4) Corona

On which date in India likely to experience the shortest day?

(1) December 22

(2) March 21

(3) June 22

(4) September 23

When does solar eclipse take place?

(1) When the sun is between the moon and earth

(2) When the earth is between the moon and sun

(3) When the moon is between the sun and earth

(4) When the moon does not lie on the line joining the sun and earth

When does the sunshine vertically on the Equator?

(1) Throughout the year

(2) For six months

(3) Twice a year

(4) Once a year

If a star is bigger than Sun, but not more than twice as big, it will turn into a _______.

(1) Pulsar

(2) Maxima

(3) Avenger

(4) Discover

Which among the following statements is true regarding International Dateline?

(1) It is 180° Longitude

(2) It is a straight line

(3) It is a big circle

(4) It is a curved line beyond the earth

The sunlight is available 24 hours on the longest day at which of the following latitudes of the earth?

(1) 49°

(2) 66½°

(3) 63°

(4) 69°51'

The Grand Canyon is located on the :

(1) Colorado River

(2) Rhine River

(3) Tapi River

(4) Niger River