At eastern elongation, the pole star moves

At western elongation, the pole star moves

A

Eastward

B

Westward

C

Northward

D

Southward

If ‘δ’ is the declination of the star and ‘φ’ is the latitude of the observer then the hour angle of the star at elongation is given by

A

sin H = tan φ . cot δ

B

cos H = tan φ . cot δ

C

tan H = tan φ . cot δ

D

None of these

If ‘δ’ is the declination of the star and ‘φ’ is the latitude of the observer, then the azimuth of the star at elongation is given by

A

sin z = sec φ . cos δ

B

cos z = sec φ . cos δ

C

tan z = sec φ . cos δ

D

None of these

At upper culmination, the pole star moves

A

Eastward

B

Westward

C

Northward

D

Southward

At lower culmination, the pole star moves

A

Eastward

B

Westward

C

Northward

D

Southward

There are 23 poles with a constant distance between each pole. A car takes 24 seconds to reach the 12th pole. How much more time will it take to reach the last pole?

A

40 seconds

B

44 seconds

C

48 seconds

D

46 seconds

The elevation of the star at elongation is obtained by

A

sin α = sin φ cosec δ

B

sin α = sin φ sec δ

C

sin α = cos φ sec δ

D

sin α = cos φ cosec δ

The patriot is the star of the country. Here the 'star' is used as a/an-

A

smile

B

metaphor

C

allegory

D

personification

A hat contains 12 cards marked with a star and 18 unmarked cards. What is the probability that one card slelected at random will be marked with a star?

A

3/5

B

2/5

C

2/3

D

5/2

If one star equals four circle and three circles equal four diamonds, then what in the ratio of star to diamond?

A

14:3

B

16:3

C

17:3

D

19:3

At eastern elongation, the pole star moves

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