1 |
Food rich in proteins is: |
potato
grapes
vegetables
bread
|
2 |
An immediate source of energy for our body is: |
mango
<span style="color: rgb(32, 33, 36); font-family: arial, sans-serif; font-size: 32px;">Glucose</span>
mushroom
meat
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3 |
If the initial velocity of a projectile becomes doubled, the time of fight will be. |
Same
4 times
Double
3 times
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4 |
The maximum range of projectile is 100 km, Take 9=10 ms-2, the initial velocity of the projectile will be. |
1000 kms-1
1 kms-1
10 kms-1
100 kms-1
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5 |
the acceleration along x -axis direction in case of projectile is. |
Zero
Equal to gravity
Maximum
Constant
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6 |
The acceleration of a projectile along x axis is. |
Zero
Increase
Decrease
Equal to 'g'
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7 |
The horizontal range of a projectile of 30owith horizontal is same at an angle. |
40<sup>o</sup>
45<sup>o</sup>
90<sup>o</sup>
60<sup>o</sup>
|
8 |
Height of projectile is maximum at an angle of. |
45<sup>o</sup>
60<sup>o</sup>
30<sup>o</sup>
90<sup>o</sup>
|
9 |
A ball is thrown up with 20 ms-1 at an angle of 60 owith x-axis , the velocity of the ball at the top position is. |
0 ms-1
10 ms-1
20 ms-1
16 ms-1
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10 |
For maximum range the angle of projection must be |
30<sup>o</sup>
45<sup>o</sup>
60<sup>o</sup>
90<sup>o</sup>
|
11 |
The path followed by a projectile in known as its |
Range
Trajectory
Cycle
Height
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12 |
The shape of trajectory of short range projectile is |
Straight line
Circle
Elliptical
Parabolic
|
13 |
The trajectory of a projectile is. |
Circle
Parabola
Hyperbola
Straight line
|
14 |
The angle of projection for which its maximum height and horizontal range are equal |
46 <sup>o</sup>
56<sup>o</sup>
66<sup>o</sup>
76<sup>o</sup>
|
15 |
The ballistic missiles are used only for |
Long range
Short range
Medium range
Constant range
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16 |
The horizontal component of velocity of projectile |
Increases
Decreases
Remain same
Decreases and then increases
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17 |
An athlete runs with a speed of 12 ms-1. Determine the longest jump he can undertake. |
12 m
14.4 m
24 m
16.2 m
|