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When the eccentricity or the distance of focus and directrix are given then the property is _________

When the eccentricity or the distance of focus and directrix are given then the property is _________ Correct Answer e = F1A/AB<1

The hyperbola is the locus of a point moving in such a way that the ratio of its distance to the focus and to that of the fixed line or directrix is always greater than 1.

Related Questions

Steps are given to locate the directrix of hyperbola when axis and foci are given. Arrange the steps. i. Draw a line joining A with the other Focus F. ii. Draw the bisector of angle FAF1, cutting the axis at a point B. iii. Perpendicular to axis at B gives directrix. iv. From the first focus F1 draw a perpendicular to touch hyperbola at A.
If the distance from the focus is 10 units and the distance from the directrix is 30 units, then what is the eccentricity?
If the distance from the focus is 3 units and the distance from the directrix is 3 units, then how much is the eccentricity?
If the distance from the focus is 2 mm and the distance from the directrix is 0.5 mm then what is the value of eccentricity?
If the distance from the directrix is 5 units and the distance from the focus is 3 units then what is the value of eccentricity?
If the distance from the directrix is greater than the distance from the focus then what is the value of eccentricity?
The ratio of the distance from the focus to the distance from the directrix is called as eccentricity.
Given below are four statements- (p) The second principal focus of a lens is the position of the object, real or virtual whose image is at infinity. (q) The second principal focus of a lens is the position of the image, real or virtual whose object is at infinity. (r) The first principal focus of a lens is the position of the object, real or virtual whose image is at infinity. (s) The first principal focus of a lens is the position of the image, real or virtual whose object is at infinity.  Examine the above statements and find which among then are correct. 
If eccentricity of ellipse is 3/7, how many divisions will the line joining the directrix and the focus have in general method?
Mohan traveled five cities (A, B, C, D and E) starting from home by a car which has a mileage such that the car can travel 10 km in 1 liter petrol. Distance between city A and B is twice the distance between home to city A. Distance between city B and C is thrice the distance between home to city A. Distance between city C and D is 100. Distance between city D and E is 1.5 times than the distance between B and C. Average distance traveled by Mohan was 41 km between five cities. Find how much petrol was needed by Mohan to travel from city B to D.