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Physics DPP (12 March)
Test 1 ( Vector ) Each question carries 2 marks
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Given that
P
+
Q
+
R
= 0. Which of the following statement is true ? ( P, Q, R are vector)
2 points
| P | + | Q | = | R |
| P + Q | = | R |
| P | - | Q | = | R |
| P - Q | = | R |
Clear selection
if |
A
| = 2 and |
B
| = 4 and angle between them is 60 degree, then |
A
-
B
| is
2 points
√13
3√3
√3
2√3
Clear selection
If
A
and
B
are two vectors such that |
A
+
B
| = 2 |
A
-
B
|, the angle between vectors
A
and
B
is
2 points
45
60
30
Data insufficient
Clear selection
if
P
+
Q
=
P
-
Q
, then
2 points
P = 0
Q = 0
P = 1
| Q | = 1
Clear selection
At what angle should the two forces
2P
and
√2P
act so that the resultant force is
P √10
2 points
45
60
90
120
Clear selection
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