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phy – 11

Welcome to your phy - 11

1. 
Which vector identity is true?

2. 
Projectile max height H, range R. Time of flight?

3. 
Stone in circle of radius r at speed v ⇒ acceleration?

4. 
A = 2i + j – k, B = i – j – 2k ⇒ A × B = ?

5. 
Time for projectile to reach max height if u = 20 m/s, θ = 30°

6. 
Time of flight for u = 20 m/s and θ = 30°

7. 
R = 3H ⇒ angle of projection?

8. 
Range of projectile on incline depends on...

9. 
Vector with magnitude 1 is called?

10. 
Range of projectile on incline depends on...

11. 
Vector with magnitude 1 is called?

12. 
Angle between A = i + j and B = i – j

13. 
A = 2i + 3j + 4k, B = i + 2j – 2k ⇒ A · B = ?

14. 
A + B is max when angle between them is...

15. 
Magnitude of resultant of two perpendicular vectors A and B

16. 
Which of the following is scalar?

17. 
A = i + j, unit vector in same direction?

18. 
A = i – 2j, B = –2i – j ⇒ A × B = ?

19. 
A = 2i + 3j, B = 3i + 4j ⇒ angle between A and B?

20. 
Which gives vector quantity?

21. 
A = i + j, B = i – j ⇒ A × B = ?

22. 
Dot product of two unit vectors at 60°?

23. 
Cross product of two parallel vectors

24. 
Cross product of two perpendicular unit vectors

25. 
A · (B × C) is what type of quantity?

26. 
A = 2i + j, B = i + j, C = i + 2j ⇒ A · (B × C) = ?

27. 
A = 3i – j, B = i + j ⇒ A · B = ?

28. 
Magnitude of vector A = 2i + 2j + 2k

29. 
For scalar triple product A · (B × C), if vectors are coplanar then result is?

30. 
Vector with zero magnitude

31. 
Dot product of perpendicular vectors is...

32. 
If A and B are perpendicular unit vectors, angle between A + B and A is...

33. 
Which identity is correct?

34. 
Vector quantity among the following

35. 
Scalar quantity among the following

36. 
A ball thrown at 10 m/s, 30° angle, hits ground 17.3 m away. Find height of tower.

37. 
Two particles A (thrown horizontally) and B (projected) meet mid-air. Find B's speed.

38. 
Sum of two vectors ⊥ to their difference. Then the forces...

39. 
Sum of vectors A and B is ⊥ to their difference. Then:

40. 
To hit a target with a bullet, aim should be...

41. 
For ΔA = A, what angle between ΔA and A?

42. 
Angular momentum at topmost point for projectile at 45°

43. 
Time of flight for stone reaching height H at angle θ

44. 
ω = 3i – 4j + k, r = 5i – 6j + 6k ⇒ linear velocity

45. 
Diagonals p = 5i – 4j + 3k, q = 3i + 2j – k ⇒ area of parallelogram

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