Question

What is the approximation made in the parallax method?

• A. All distances measured between two points on earth is zero.
• B. All distances measured between two points on earth is constant.
• C. Distance between a point on the earth and the planet is very large as compared to the distance between two points on earth's surface.
• D. No approximation is made.

Answer 1

The correct option is C Distance between a point on the earth and the planet is very large as compared to the distance between two points on earth's surface.

In parallax method, an approximation is made that distance between a point on the earth and the planet is very large as compared to the distance between two points on the earth's surface.