Q2.A particle executing SHM crosses points A and B with the same velocity. Having taken 3 s in passing from A to B, it returns to B after another 3 s. The time period is
Answer : Option CExplaination / Solution: No Explaination.
Q3.The length of a second’s pendulum on the surface of the Earth is 0.9 m. The length of the same pendulum on surface of planet X such that the acceleration of the planet X is n times greater than the Earth is
Answer : Option AExplaination / Solution: No Explaination.
Q5.Two
bodies A and B whose masses are in the ratio 1:2 are suspended from two
separate massless springs of force constants kA and kB
respectively. If the two bodies oscillate vertically such that their maximum
velocities are in the ratio 1:2, the ratio of the amplitude A to that of B is
Answer : Option BExplaination / Solution: No Explaination.
Q6.A spring is connected to a mass m suspended from it and its time period for vertical oscillation is T. The spring is now cut into two equal halves and the same mass is suspended from one of the halves. The period of vertical oscillation is
Answer : Option BExplaination / Solution: No Explaination.
Q8.A
simple pendulum has a time period T1.
When its point of suspension ismoved
vertically upwards according as y = k t2, where y is vertical distance covered and k = 1 ms−2, its time period becomes T2. Then T12/T22
is (g=10ms-2)
Answer : Option CExplaination / Solution: No Explaination.
Q9.An
ideal spring of spring constant k, is
suspended from the ceiling of a room and a block of mass M is fastened to its lower end. If the block is released when the
spring is un-stretched, then the maximum extension in the spring is
Answer : Option CExplaination / Solution: No Explaination.
Q10.A
pendulum is hung in a very high building oscillates to and fro motion freely
like a simple harmonic oscillator. If the acceleration of the bob is 16 ms−2 at a distance of 4 m
from the mean position, then the time period is
Answer : Option DExplaination / Solution: No Explaination.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0