In the standing wave experiment, I is distance between the first and last model
ID: 2076829 • Letter: I
Question
In the standing wave experiment, I is distance between the first and last model and the wavelength is given by lambda = 21/(n - 1) where n is the number of modes. If L = (1, 49) m, then the calculated value of the wavelength lambda with as error estimate for the second normal mode is (a) (0.745 plusminus 0.003)m (b) (0.994 plusminus 0.003)m (c) (1.491 plusminus)m (d) (2.982 plusminus)m (e)None of the above. In the standing wave experiment, which of the following assumptions used the in which of the wave equation provides a practical lower limit on the hanging load mass? (a) Only vertical displacements of the string produce the and produce the longitudinal waves (b) Small angle approximation was used to describe the angle between tension and the horizontal. (c) Tension is measured large enough to ignore the weight of the string. (d) The point of attachment at fork is a node (e) None of the above. Which of the following environmental errors can be either systematic or random? (a) Variations in size due to temperature (b) material deficits due to wear and erosion. (c) Material excesses due to dirt and grime (d) Changes in shape due to elastic deformations. (e) None of the above. In the ballistic pendulum experiment, after the collision, what items comprise the closed isolated system in which mechanical energy is conserved? (a) Ball plus pendulum. (b) Pendulum plus Earth. (c) Combined ball and pendulum (d) Earth, ball and pendulum. (e) None of the above.Explanation / Answer
35) option c is correct.
Tension is assumed large enough which can be only possible by taking a minimum value of mass.
37)b) pendulum plus earth. It is because the ball does not interact after collision.