The resultant of two forces of equal magnitudes is also equal to the magnitude of the forces. The angle between the two forces is________________?

Related Mcqs:

1. The magnitude of the cross product is equal to the dot product between them. The angle between the two vectors is________________?

   A. 30° B. 45° C. 60° D. 180°...

2. 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...

3. 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...

4. The magnitude of i^. (j^ x k^) is________________?

   A. 0 B. 1 C. -1 D. i^...

5. 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...

6. By how many times are the Electrostatic forces stronger than the Gravitational Forces for a fixed distance?

   A. 102 B. 1036 C. 1012 D. None of these Submitted by: Nayab Idrees...

7. Wavelength of X-rays falling at glancing angle of 30? on a crystal with atmic spacing 2 x 10-10 for the fist order diffraction is________________?

   A. 4 x 10-10 m B. 2 x 10-10 m C. 0.02×10-10m D. 20×10-10m...

8. The shaft of a motor rotates at a constant angular speed of 360rev/min. Angle turned through in 1 sec in radian is________________?

   A. π B. 3π C. 6π D. 12π...

9. What is the angle of projection for which the range and maximum height become equal ?

   A. tan-1 ¼ B. tan-1 4 C. tan-1 ½ D. tan-1 2...

10. An angle between two vectors A and B can be determined by_____________?

    A. Their dot product B. Their cross product C. Head to tail rule D. Right-hand rule...