Question

In which of the following types of motion, there is no change in direction of the moving body?

• A. Curvilinear motion
• B. Random motion
• C. Oscillatory motion
• D. Rectilinear motion

Answer 1

The correct option is D

Rectilinear motion

Correct option is D: Rectilinear motion

Explanation of correct option:

1. Rectilinear motion: The motion of an object along a straight line is called rectilinear motion. Eg: A car moving along a straight path.

Explanation of incorrect option:

1. Curvilinear motion: The motion of an object along a curved line is called curvilinear motion. Due to curved path, direction of the object changes.
2. Random motion: In random motion, direction of the object changes frequently.
3. Oscillatory motion: The motion of an object in which the object moves to and fro about its mean position is called oscillatory motion. Eg: motion of pendulum. (because of to and fro motion, direction of pendulum changes continuously.)

Final Answer: Option D