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Question 1 of 10
1. Question
A bucket containing water is tied to one end of a rope of length 2.5 m and rotated about the other end in a vertical circle. What should be the minimum velocity of the bucket at the highest point, so that the water in the bucket will not spill? (g = 10 m/s2) CorrectIncorrect -
Question 2 of 10
2. Question
A frictional track ABCDE ends in a circular loop of radius R, body slides down the track from point A which is at a height h of 5 cm. Maximum value of R for the body to successfully complete the loop is:
CorrectIncorrect -
Question 3 of 10
3. Question
The value of ‘g’ at a particular point is 9.8 m/sec2 suppose the earth suddenly shrink uniformly to half its present size without losing any mass. The value of ‘g’ at the same point (assuming that the distance of the point from the centre of the earth does not shrink) will become
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Question 4 of 10
4. Question
If the radius of the earth were to shrink by 1% its mass remaining the same, the acceleration due to gravity on the earth’s surface would
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Question 5 of 10
5. Question
Calculate the M.I. of a thin uniform ring about an axis tangent to the ring and in a plane of the ring, if its M.I. about an axis passing through the centre and perpendicular to plane is 4 kg m2
CorrectIncorrect -
Question 6 of 10
6. Question
The torque acting is 2000Nm with an angular acceleration of 2 rad/s2. the moment of inertia of body is CorrectIncorrect -
Question 7 of 10
7. Question
The displacement of particle performing simple harmonic motion is given by, x = 8 sin wt + 6 cos wt, where distance is in cm and time is in second. The amplitude of motion is
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Question 8 of 10
8. Question
The pendulum is acts as second pendulum on earth. Its time on a planet, whose mass and diameter are twice that of earth, is
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Question 9 of 10
9. Question
A number of small drops of mercury coalesce adiabatically to form a single drop. The temperature of drop
CorrectIncorrect -
Question 10 of 10
10. Question
A capillary tube of radius r can support a liquid of weight 6.28 × 10–4 N. if the surface tension of the liquid is 5 × 10–2 N/m. the radius of capillary must be
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