Options:
- A. An inertial frame of reference
- B. Non-inertial frame
- C. Neither inertial nor non-inertial
- D. Both inertial and non-inertial
View Answer
B. Non-inertial frame
Physics
A body can have constant velocity when it follows a_____________?
Options:
- A. Elliptical path
- B. Circular path
- C. Parabolic path
- D. Rectilinear path
View Answer
D. Rectilinear path
Minimum number of communication satellites required to cover the whole earth is______________?
Options:
- A. 4
- B. 3
- C. 2
- D. 5
View Answer
B. 3
A body moving along the circumference of a circle completes two revolutions. If the radius of the circular path is R the ration of displacement to the covered path will be_____________?
Options:
- A. ?R
- B. 2? R
- C. 0
- D. 4?R
View Answer
C. 0
A body of 2 kg is suspended from the ceiling of an elevator moving up with an acceleration g. Its apparent weight in the elevator will be______________?
Options:
- A. 9.8 N
- B. 19.6 N
- C. 129.4 N
- D. 39.2 N
View Answer
D. 39.2 N
According to Einstein, the gravitational interaction is possible between_______________?
Options:
- A. material objects only
- B. material objects and electromagnetic radiation only
- C. electromagnetic radiations
- D. none of the above
View Answer
B. material objects and electromagnetic radiation only
One radian is equal to______________?
Options:
- A. 67.3
- B. 57.3
- C. 87.3
- D. 60
View Answer
B. 57.3
The period of a circular motion is given by_______________?
Options:
- A. T = ?v
- B. T = ?w
- C. T = 2?r
- D. T = 2?r/v
View Answer
D. T = 2?r/v
The direction of the linear velocity of a body moving in a circle is______________?
Options:
- A. along the axis of rotation
- B. along the tangent
- C. directed towards the centre
- D. directed away from the centre
View Answer
B. along the tangent
hen a body moves in a circle, the angle between its linear velocity and angular velocity is always_______________?
Options:
- A. 180
- B. 0
- C. 90
- D. 45
View Answer
C. 90