The Great Circles

Q. Read the following statements about great circles and select the option that is true.

Assertion [A]: Great circles are highly useful for navigation.

Reason [R]: They represent the longest distance between two points on a sphere.

1. Both A and R are true. R provides the incorrect explanation for A.
2. Both A and R are true. R provides the correct explanation for A.
3. A is true but R is false.
4. Both A and R are false.

Q. Which of the following statements is/are not true with reference to the great circle?

1. It is the smallest circle that can be drawn on any given sphere.
2. It is the largest circle that can be drawn on any given sphere.
3. It is a circle on the surface of a sphere which lies in a plane passing through the sphere's centre.
4. It is a circle on the interior of a sphere which lies in a plane passing through the sphere's centre.

Q. The Great Circle represents the ___ distance between any two points on a sphere.

1. shortest
2. impermanent
3. longest
4. circuitous

Q. If a plane was flying non-stop from Singapore to New York, what route would it take to get to New York as fast as possible?

1. Along the Atlantic Ocean
2. Along the Great Circle
3. Along the IDL
4. Along the Prime Meridian

Q. The shortest path between two points on the Earth is determined by the Great Circle Route

1. True
2. False

Q. Which among the following is a great circle?

1. Arctic Circle
2. Tropic of Cancer
3. Tropic of Capricorn
4. Equator

Q. Read the following statements about great circles and select the option that is true.

Assertion [A]: Great circles are highly useful for navigation.

Reason [R]: They represent the longest distance between two points on a sphere.

1. Both A and R are true. R provides the incorrect explanation for A.
2. Both A and R are true. R provides the correct explanation for A.
3. Both A and R are false.
4. A is true but R is false.