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Physics Mcqs — Test 15

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Question 1
During fusion of hydrogen into helium________________?
Question 2
One AMU is equal to__________________?
Question 3
Which one is a unit vector ?
Question 4
An angle between two vectors A and B can be determined by_____________?
Question 5
The magnitude of the cross product is equal to the dot product between them. The angle between the two vectors is________________?
Question 6
The cross product of two vectors is a negative vector when______________?
Question 7
In which quadrant, the only value of tan will be positive ?
Question 8
The magnitude of i^. (j^ x k^) is________________?
Question 9
If A=Ax i^ + Ay j^ + Az K^ B = Bx i^ + By j^ + Bz K^ then______________?
Question 10
A central force is that which__________________?