Parallax: When the two objects are seen on a straight line, they seem to be concident. If the objects are at different places and the eye is moved side ways then there is a relative …

Parallax is a method of using two points of observation to measure the distance to an object by observing how it appears to move against a background. One way to understand parallax is to …

(i) Parallax Method: When an object is seen by closing our right and left eye alternatively, there is a shift in the position of the object w.r.t. the background observed. This is known as parallax. …

There is an hinverse relation between star's parallax and its distance. A star which has a parallax $$1$$ arcseconds is at a distance of $$1$$ parsec, which is equal to $$3.26$$ light years. …

Assertion :Parallax method is used for measuring distances of nearby stars only. Reason: With increase of distance of star, parallactic angle becomes too small to be measured accurately. …

Assertion :Parallax method is used for measuring distances of nearby stars only. Reason: With increase of distance of star, parallactic angle becomes too small to be measured accurately.

A star has a parallax angle p of 0.723 arcseconds. What is the distance of the star?

To minimise parallax error, the observer should place the object : as near to the scale of the ruler as possible and the eye must be directly above the scale; as far to the scale of the ruler as …

The parallax of a heavenly body measured from two points diametrically opposite on earth is 60 second. If the radius of earth is 6.4 X 100 m, the distance of the heavenly body from the centre …

Relationship between a star's distance and its parallax angle: d = 1 p. The distance d is measured in parsecs and the parallax angle p is measured in arcseconds. Hence, d = 1 0.723 = 1.38 p a …