Which one of the following statements regarding simple pendulum is correct ? Simple pendulum has a time period independent of amplitude :

Which one of the following statements about speed and velocity is correct?

Which one of the following about different frictional forces is correct?

An iron nail sinks in water whereas an iron ship floats. Which of the following statements is correct in this regard? 1. Average density of ship is greater than that of the water 2. Average density o…

Which one of the following is not a conservative force ?

The length of a simple pendulum is increased four times to its previous value while the mass is doubled. What is the ratio of the new and previous time period of the pendulum?