A. mg cosθ
B. mg sinθ
C. mg tonθ
D. mg
Related Mcqs:
- A simple pendulum suspended from the ceiling of a lift has time period T when the lift is at rest. When the lift falls freely, the time period is_________________?
A. Infinite
B. T/g
C. Zero
D. g/T - The restoring force acting on the simple pendulum is given by_______________?
A. mg sin θ
B. mg sin θ
C. mg cos θ
D. mg cos θ - The natural frequency of simple pendulum depends upon_______________?
A. It’s mass
B. It’s length
C. Square of its length
D. The square root of its length - Total distance travelled by a bob of the simple pendulum in one vibration is equal to________________?
A. Amplitude
B. Square of the amplitude
C. 2 x amplitude
D. 4 x amplitude - At Murree Hills (Assume the value of g changes). If we use a simple pendulum as time standard then one-second duration will_____________?
A. Increase
B. Decrease
C. Remains the same
D. Is zero - In case of a simple pendulum, the cause of damping is__________________?
A. Drag force of air
B. Gravity
C. Tension in the string
D. None of these - In vibratory motion_________________?
A. P E remains constant
B. K E remain constant
C. total energy remains constant
D. total momentum remains constant - A simple pendulum has a bob of mass m and its frequency is f. If we replaced the bob with a heavier one say of 2m then that will be its new frequency ?
A. 1/4f
B. 1/2f
C. frequency lower than 20 Hz
D. 2f - The length of the second pendulum is_________________?
A. 100 cm
B. 99 cm
C. 99.2 cm
D. 98 cm - Simple harmonic motion is a type of________________?
A. Rotational motion
B. Circular motion
C. Musical arrangement
D. Vibratory motion
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