Maths-

General

Easy

Question

# If and are the eccentric angles of extremities of a focal chord of an ellipse, then the eccentricity of the ellipse is -

## The correct answer is:

### Equation of chord be

cos + sin = cos

since it passes through (ae, 0)

so e cos = cos

e = =

e =

### Related Questions to study

Maths-

### If x cos + y sin = p is a tangent to the ellipse , then -

### If x cos + y sin = p is a tangent to the ellipse , then -

Maths-General

Maths-

### Equation of chord of the ellipse joining the points P (a cos, b sin ) and Q (a cos , b sin ) is 7

### Equation of chord of the ellipse joining the points P (a cos, b sin ) and Q (a cos , b sin ) is 7

Maths-General

physics-

### In Young's double slit experiment, 12 fringes are obtained to be formed in a certain segment of the screen when light of wavelength 600 nm is used. If wavelength of light is changed to 400 nm, number of fringes observed in the same segment of the screen is given by

### In Young's double slit experiment, 12 fringes are obtained to be formed in a certain segment of the screen when light of wavelength 600 nm is used. If wavelength of light is changed to 400 nm, number of fringes observed in the same segment of the screen is given by

physics-General

physics-

### Intensity of central bright fringe due to interference of two identical coherent monochromatic sources is I. If one of the source is switched off, then intensity of central bright fringe becomes

### Intensity of central bright fringe due to interference of two identical coherent monochromatic sources is I. If one of the source is switched off, then intensity of central bright fringe becomes

physics-General

maths-

### If P (a cos, bsin) is a point on an ellipse , then ' ' is –

### If P (a cos, bsin) is a point on an ellipse , then ' ' is –

maths-General

Maths-

### If the normal at the point P() to the ellipse intersects it again at the point Q(2) then cos =

### If the normal at the point P() to the ellipse intersects it again at the point Q(2) then cos =

Maths-General

maths-

### If a tangent to ellipse + = 1 makes an angle with x- axis, then square of length of intercept of tangent cut between axes is-

### If a tangent to ellipse + = 1 makes an angle with x- axis, then square of length of intercept of tangent cut between axes is-

maths-General

physics-

### Vibrating tuning fork of frequency is placed near the open end of a long cylindrical tube. The tube has a side opening and is fitted with a movable reflecting piston. As the piston is moved through the intensity of sound changes from a maximum to minimum. If the speed of sound is then is

### Vibrating tuning fork of frequency is placed near the open end of a long cylindrical tube. The tube has a side opening and is fitted with a movable reflecting piston. As the piston is moved through the intensity of sound changes from a maximum to minimum. If the speed of sound is then is

physics-General

maths-

### PQ and QR are two focal chords of an ellipse and the eccentric angles of P,Q,R and

*, *respectively then tan tan is equal to -

### PQ and QR are two focal chords of an ellipse and the eccentric angles of P,Q,R and

*, *respectively then tan tan is equal to -

maths-General

maths-

### The radius of the circle passing through the points of intersection of ellipse = 1 and x^{2 }– y^{2} = 0 is -

### The radius of the circle passing through the points of intersection of ellipse = 1 and x^{2 }– y^{2} = 0 is -

maths-General

maths-

### If are the eccentric angles of the extremities of a focal chord of an ellipse, then the eccentricity of the ellipse is -

### If are the eccentric angles of the extremities of a focal chord of an ellipse, then the eccentricity of the ellipse is -

maths-General

maths-

### If is the angle between the diameter through any point on a standard ellipse and the normal at the point, then the greatest value of tan is–

### If is the angle between the diameter through any point on a standard ellipse and the normal at the point, then the greatest value of tan is–

maths-General

physics-

### A radar operates at wavelength 50.0 cm. If the beat freqency between the transmitted singal and the singal reflected from aircraft ( ) is 1 kHz, then velocity of the aircraft will be

### A radar operates at wavelength 50.0 cm. If the beat freqency between the transmitted singal and the singal reflected from aircraft ( ) is 1 kHz, then velocity of the aircraft will be

physics-General

Maths-

### The locus of P such that PA^{2} + PB^{2} = 10 where A = (2, 0) and B = (4, 0) is

### The locus of P such that PA^{2} + PB^{2} = 10 where A = (2, 0) and B = (4, 0) is

Maths-General

maths-

### Let L = 0 is a tangent to ellipse + = 1 and S, be its foci. If length of perpendicular from S on L = 0 is 2 then length of perpendicular from on L = 0 is

### Let L = 0 is a tangent to ellipse + = 1 and S, be its foci. If length of perpendicular from S on L = 0 is 2 then length of perpendicular from on L = 0 is

maths-General