Related Questions

Light from the star, Alpha Centauri, which is nearest to the earth after the sun, reaches the earth in
A 4.2 seconds
B 42 seconds
C 4.2 years
D 42 years
The nearest star is so far away from the earth that the directions to it from two diametrically opposite points on the earth differs less than
A 0.01 second
B 0.001 second
C 0.0001 second
D None of these
The distance of the nearest star besides the sun from the earth is ________
A 4.9 × 1111 m
B 95 × 1015 m
C 4.3 light years
D 4.2 light years
পৃথিবী পৃষ্ঠে একটি ইটের ওজন 81 N. পৃথিবীর অর্ধেক বাসার্ধের সমান উচ্চতায় এবং অর্ধেক বাসার্ধের সমান গভীরতায় ইউটির উপরে পৃথিবীর অভিকর্ষ বলের মান কত হবে?(A brick weighs 81 N on the surface of the earth. What are the earth's gravitational forces act on it at a height of half of the radius of the earth and at a depth of half of the radius of earth, respectively?)
A 36 N and 81 N
B 36 N and 40.5 N
C 36 N and 20.25 N
D 98 and 40.5 N
E 81 N and 81 N
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
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
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

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