Conic Section MCQs

1. The line y=mx+c intersects the circle x²+y²=a² at the most of __________ points.
1. 1
2. 2
3. 3
4. 4


2. The line perpendicular to the tangent line is called ?
1. normal line
2. secant line
3. limit
4. derivative


3. The eccentricity of an ellipse is ?
1. e = 1
2. e < 1
3. e > 1
4. 0 < e < 1


4. The perpendicular distance from the point (3,-4) to the line
   3x²-4x+10=0
1. 7
2. 8
3. 9
4. 10


5. The point of a parabola which is closest to the focus is the __________ of the parabola.
1. vertex
2. latusrectum
3. directrix
4. eccentricity


6. The center of the circle 4x²+4y²-8x+12y-25=0 is ?
1. (2,-3)
2. (-2,3)
3. (-4,6)
4. (4,-6)


7. The radius of the circle 4x²+4y²-8x+12y-25=0 is ?
1. 
2. 
3. 
4. 


8. If the distance between vertex and focus is 3, then the length of latusrectum is ?
1. 6
2. 8
3. 10
4. 12


9. If the discriminent of a conic is h²-ab=0, then it represents a
1. circle
2. parabola
3. hyperbola
4. ellipse


10. The focus of the parabola y²=-8(x-3) is ?
1. (0,0)
2. (1,0)
3. (0,1)
4. (1,1)

Answer key

 

 

1. B
2. A
3. D
4. A
5. A
6. D
7. C
8. D
9. B
10. B

 

ECAT MCQs Part 1

1. Converse of pair production is
   a)compton effect
   b)annihilation of matter
   c)photoelectric effect
   d)none of them
2. de broglies hypothesis was experimentally verified by
   a)maxwell
   b)compton
   c)einstien
   d)davion and germar
3. What is the unit of absorbed dose?
   a)gray
   b)severt
   c)curie
   d)roentgen
4. The decay of neutron results into the formation of
   a)proton,positron
   b)proton,electron
   c)electron,anti neutrino
   d)proton,helium
5. The unit of concentration is
   a)mol. ml
   b)mol dm^-3
   c)gm equivalent lit^-1
   d)g. lit^-1
6. If there are weak intermolecular forces in a liquid, it will be
   a)more volatile
   b)more dense
   c)less volatile
   d)heavy dense
7. In the definition of conic the constant ratio is called
   a)directrix
   b)focus
   c)vertex
   d)eccentricity
8. Which sentence is correct?
   A. How beautiful moon is!
   B. How beautiful the moon is!
   C. How beautiful that moon is!
   D. How beautiful the moon is.
9. sugar crystals belong to the
   a)cubic
   b)monoclinic
   c)triclinic
   d)orthrorhombic
10. weber is a unit of
    a)magnetic flux
    b)magnetic flux density
    c)magnetic induction
    d)none of these