NEET Physics: Questions 1658 - 1660 of 2099
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Question number: 1658
Question number: 1659
The length of a second’s pendulum is 7 m. The spherical bob which is empty from inside has a mass of 150 gm. This is now replaced by another solid bob of same radius but having different mass of 100 gm. The new time period will be
Question number: 1660
Identify wrong statements among the following,
(1) The greater the mass of a pendulum bob, the shorter is its frequency of oscillation
(2) A simple pendulum with a bob of mass m swings with an angular amplitude of 40°. When its angular amplitude is 20°, the tension in the string is less than mg cos 20 0.
(3) As the length of a simple pendulum is increased, the maximum velocity of its bob during its oscillation will also increase.
(4) The fractional change in the time period of a pendulum on changing the temperature is independent of the length of the pendulum.
Select the correct answers and mark it according to the following codes:
1 and 3 are correct
2 and 4 are correct
1 and 2 are correct
1, 2 and 3 are correct