Entry Test MCQ :: Circular Motion
31.
moving along the circumference of a circle completes two revolutions. If the radius of the circular path is R, the ratio of displacement to the covered path will be
Answer: Option C
Explanation:
32.
A man of weight W is standing on an elevator which is ascending with an acceleration a. The apparent weight of the man is
Answer: Option C
Explanation:
33.
Who discovered the inverse square law for gravity?
A.
Einstein
B.
Galileo
C.
Newtons
D.
Plank
Answer: Option C
Explanation:
34.
The planet nearest to the earth is
Answer: Option A
Explanation:
35.
A satellite moving round the earth constitutes
A.
An inertial frome of reference
B.
non inertial frame
C.
neither inertial nor non inertial
D.
both inertial and non inertial
Answer: Option B
Explanation:
36.
Minimum number of communication satellites required to cover the whole carth is
Answer: Option B
Explanation:
37.
A body of 2 kg is suspended form the ceiling of an elevator moving up with an acceleration g. Its apparent weight in the elevator will be
Answer: Option D
Explanation:
38.
If a body of mass 10 kg is allowed to fall freely, its weight becomes
Answer: Option A
Explanation:
39.
How many days would be in a year if the distance between the earth and the sun were reduced to half of its present value (assuming circular orbit)?
A.
365 days
B.
730 days
C.
329 days
D.
129 days
Answer: Option D
Explanation:
40.
When a body is moving along a circular path it covers a certain angle in a given internal of time. Such type of motion is
A.
vibratory motion
B.
linear motion
C.
rotatory motion
D.
angular motion
Answer: Option D
Explanation:
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