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Solution to question 1 on page 40 Physics 12 textbook
Problem:
What is a mechanical wave?
Solution:
A mechanical wave is the propagation of mechanical oscillations through a material medium over time.
Solve problem 2 on page 40 of the Physics 12 textbook
Problem:
What is a transverse wave? What is a longitudinal wave?
Solution:
A transverse wave is a propagating wave in which the oscillations occur perpendicular to the direction of energy transmission.
Longitudinal waves are propagating waves in which the oscillations occur parallel to the direction of energy transmission.
Solve problem 3 on page 40 of the Physics 12 textbook
Problem:
What is a wavelength?
Solution:
Wavelength is the distance between two consecutive wave peaks (points where the wave reaches its maximum value).
Solve problem 4 on page 40 of the Physics 12 textbook
Problem:
Write the wave equation.
Solution:
Solve problem 5 on page 40 of the Physics 12 textbook
Problem:
Why can we say that waves exhibit both temporal and spatial periodicity?
Solution:
Waves are a process of temporal periodicity, meaning the oscillation of a point returns to its original state after a certain time interval, known as a cycle. Spatial periodicity is evident in the fact that points separated by integer multiples of the wavelength along the direction of wave propagation exhibit identical oscillations.
Solve problem 6 on page 40 of the Physics 12 textbook
Problem:
What is a mechanical wave?
A. It is the propagation of oscillations in a medium.
B. It is the oscillation of every point in a medium.
C. Represents a unique form of motion in a medium.
D. Signifies the transmission of motion by elements within a medium.
Solution:
Answer A.
Mechanical waves are oscillations that propagate through a medium.
Solve problem 7 on page 40 of the Physics 12 textbook
Problem:
Choose the correct statement.
A. Longitudinal waves are waves that propagate along a string.
B. Longitudinal waves travel vertically, while transverse waves travel horizontally.
C. Longitudinal waves are waves in which the direction of oscillation (of the medium's elements) aligns with the direction of propagation.
D. Longitudinal waves propagate along the vertical axis, while transverse waves propagate along the horizontal axis.
Solution:
Answer C.
Longitudinal waves are waves where the direction of oscillation (of the medium's elements) aligns with the direction of propagation.
Solve problem 8 on page 40 of the Physics 12 textbook
Problem:
In the experiment shown in figure 7.1, vibrating the oscillator with a frequency of 50Hz. At a specific time t, the diameters of 5 consecutive circular waves are measured as 12.4, 14.3, 16.35, 18.3, and 20.45 cm. Calculate the wave speed.
Solution:
In the Physics 12 curriculum, students will cover Chapter I, Mechanical Oscillations. Check the solutions on page 49 of Physics 12 textbook to master this lesson.
Chapter I, Mechanical Oscillations in Physics 12, where students will explore Wave Interference along with solving exercises on page 45 of the Physics 12 textbook.
