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# Which of the following is the parallax angle in the shown diagram.A) d.B) p.C) q.D) r.

Last updated date: 13th Jun 2024
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Hint:The parallax angle is the angle which is taken from a point at one time on the earth and again after six months later from the same point on the earth. The parallax angle is the semi-angle of inclination between the two lines to sight.

Complete step by step solution:
It is asked in the problem which angle is the parallax angle in the given figure.
As we know that the parallax angle is the semi-angle of inclination between the two lines of sight taken at the difference of six months from the same point of time by this we can see that the parallax angle is p.

The correct answer for this problem is option B.

Additional information:The parallax angle is the angle which is observed from the earth in order to get the change in the angle and hence find the distance of the earth from that particular star. The parallax angle also affects the binoculars and microscopes and all the optical instruments which show the same image with slightly different angles. Humans and also animals use the parallax to gain depth perception and the process is known as stereopsis.

Note:The parallax method is used to get the distance between the earth and stars and it is said that parallax method is the best method for calculating the distance between the earth and the star. The parallax method is used when a large distance is to be measured like distance between the earth and the start.