Why Ballistic missile fails in some circumstances of precision ?

Related Mcqs:

1. If a convex lens of large aperture fails to converge the light rays incident on it to a single point, it is said to suffer from______________?

   A. chromatic aberration
   B. spherical aberration
   C. both spherical and chromatic
   D. distortion

2. Why should a resistance be introduced in a circuit in series deliberately ?

   A. to increase current
   B. to decrease current
   C. to control current
   D. just to give a good look to circuit

3. Why gamma rays are used to kill bacteria to sterilize surgical equipment etc ?

   A. Chargeless
   B. Massless
   C. Highly penetrating
   D. All of above

4. Why the needle of iron swims on water surface when it is kept gently ?

   A. It will remain under the water, when it will displace more water than its weight
   B. the density of needle is less than that of water
   C. due to surface tension
   D. due to its shape

   Submitted by: Abid Hussain

5. When body is in motion, ____________ always changes?

   A. its velocity
   B. its acceleration
   C. its position vector
   D. its momentum

6. Flight of a rocket in the space is an example of______________________?

   A. second law of motion
   B. third law of motion
   C. first law of motion
   D. law of gravitation

7. Instantaneous and average velocities become equal when body___________________?

   A. has zero acceleration
   B. has uniform acceleration
   C. has variable acceleration
   D. moves in a circle

8. The collision between two bodies be elastic if bodies are_________________?

   A. solid and soft
   B. soft and elastic
   C. solid and hard
   D. hard and elastic

9. Which of the following is not an example of projectile motion ?

   A. a gas filled ballon
   B. bullet fired from gun
   C. a football kicked
   D. a base ball shot

10. The range of the projectile at 30 deg and 60 deg are__________________?

    A. equal to 45 deg
    B. equal to 90 deg
    C. equal to each other
    D. none of the above