When two identical traveling waves are superimposed, the velocity of the resultant wave__________________?

Related Mcqs:

1. Which of the following waves have smallest velocity in vacuum?

   A. Ultraviolet
   B. Sound
   C. Infra-Red
   D. Micro

   Submitted by: Malik Asghar Hussain

2. Two automobiles are 150 kilometers apart and traveling toward each other. One automobile is moving at 60km/h and the other is moving at 40km/h mph. In how many hours will they meet?

   A. 2.5
   B. 2.0
   C. 1.75
   D. 1.5
   E. 1.25

   Submitted by: Mansoor Ul Haque

3. A light ray traveling form rarer to denser medium suffers a phase change of__________________?

   A. 60°
   B. 90°
   C. 180°
   D. 45°

4. After traveling through a vacuum a photon of light entering into some transparent denser medium. Thus the energy of light______________?

   A. Increases because wavelength decreases
   B. Decreases because speed decreases
   C. Remains same
   D. Increases then decrease

5. The velocity of sound in air would become double than its velocity at 0°C at temperature ?

   A. 313°C
   B. 586°C
   C. 819°C
   D. 1172°C

6. The velocity of sound in air would become double than its velocity at 0°C at temperature________________?

   A. 313°C
   B. 586°C
   C. 819°C
   D. 1172°C

7. hen a body moves in a circle, the angle between its linear velocity and angular velocity is always_______________?

   WA. 180°
   B. 0°
   C. 90°
   D. 45°

8. Two convex lenses of equal focal length f are placed in contact the resultant focal length of the combination is______________?

   A. zero
   B. focus
   C. 2 f
   D. f/2

9. Which of the following can not be the resultant of two vectors having magnitude 10N and 15N?

   A. 18N
   B. 22N
   C. 25N
   D. 30N

   Submitted by: Zahid Jagirani

10. Which of the following pair of forces can produce a resultant of 8N?

    A. 2N & 5N
    B. 20N & 2N
    C. 3N & 6N
    D. 4N & 1N

    Submitted by: Zahid Jagirani