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Which one of the following statements is/are incorrect regarding waves? (A) wave height is not indicator of wave energy (B) wave height is controlled by wind strength (C) the distance of open water a wave travels over affects the wave height (D) the depth of the sea is important factors affecting wave height Choose the most appropriate answer from the options given below:
A wave represented by the equation y=acos(kx-ωt) is superposed with another wave to form a stationary wave such that point x=0 is a node. The equation for the other wave is?
Many wave properties are dependent upon other wave properties. Yet, one wave property is independent of all other wave properties. Which one of the following properties of a wave is independent of all the others?
Which of the following statements of D’Alembert’s principle are correct? 1. The net external force F actually acting on the body and the inertia force F1 together keep the body in a state of fictitious equilibrium. 2. The equation of motion may be written as F + (-ma) = 0 and the fictitious force (-ma) is called an inertia force. 3. It tends to give solution of a static problem an appearance akin to that of a dynamic problem.
When the crest of one wave falls on the crest of the second wave, and trough of one wave falls on the trough of the second wave, this phenomenon is called
Which of the following inverter output waveforms are better compared to a square wave? 1. Quasi sine wave 2. Pulse Width Modulation 3. Sine wave 4. Triangular wave
Consider the following statements regarding sound wave.  I. It is a kind of longitudinal wave.  II. It is a mechanical wave.  III. The audible sound wave has the frequency of 20 Hz-20000 Hz.  Which among the above statements is/are correct?
Consider the following statements regarding heat waves in India.  I. Heat waves mostly occur over Rajasthan, Punjab and Haryana towards the end of April but they mainly take place in May.  II. Any heat wave lasts for around 4-5 days.  III. If there is an increase in temperature by 6-7 degrees Celsius above normal, that is known as the Moderate Heat Wave whereas if it is 8 degree Celsius or more, that is known as Severe heat wave.  Which among the above statements is/are correct regarding the heat waves?
A wave y=asin(ωt-kx), on a string meets with another wave producing a node at x = 0. Then, the equation of the unknown wave is?
A class III mathematics teacher gave the following questions to her students:  \(\begin{equation} \frac{ \begin{array}[b]{r} 256 \\ + 173 \end{array} }{ } \end{equation}\) \(\begin{equation} \frac{ \begin{array}[b]{r} 28 \\ + 32 \end{array} }{ } \end{equation}\) \(\begin{equation} \frac{ \begin{array}[b]{r} 129 \\ + 76 \end{array} }{ } \end{equation}\) Later she asks the students to solve a worksheet that has similar questions. Which of the following statements is appropriate for the given situation?