Related Questions

The Polaris remains below horizon at
A 10° N
B 50° N Latitude
C Equator
D 5° S latitude
The Polaris describes a small circle round the pole whose radius is approximately
A 1°
B 2°
C 3°
D 4°
The latitude of a place was obtained by subtracting the zenith distance of a star from its declination, the observed star was between
A Horizon and equator
B Equator and zenith
C Zenith and pole
D Pole and horizon
The latitude of a place was obtained by subtracting the declination of a star from its zenith distance, the observed star was between
A Horizon and equator
B Zenith and pole
C Equator and zenith
D Pole and horizon
A survey was conducted among the students of Khulna University to find out how many forms of physical exercise usually swam, 25% said they usually did jogging, 20% said they played cricket, 15% said they usually played football and 20 respondents said they did not take any form of exercise. From the above findings it can be concluded that.
A The student of khulna University do not usually take physical exercise.
B No respondent took more than one form of exercise.
C The method of data collection was not valid.
D Some of the respondents took more than one form of exercise.
Latitude of the observer's position is equal to altitude of
A North pole
B Pole star
C Celestial pole
D All the above
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
When a star is between the pole and the horizon, the relationship between latitude (λ), zenith distance (z) and declination δ, is
A θ = z + δ
B θ = δ - z
C θ = 180° - (z + δ)
D θ = (z + δ) - 180°
The length of a parallel of λ latitude between two meridians is equal to difference in longitudes multiplied by
A sin λ
B cos λ
C tan λ
D cot λ

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