Exams › NEET › Physics

A plane progressive wave travelling in \( -Y \) direction is represented by the equation \( 2 \cos (2 \pi t+\pi y) . \) If this wave was travelling in \( X \) direction, the frequency of the wave would have been

1. doubled
2. remains same
3. tripled
4. halved

Correct answer: remains same

Solution

The frequency of the wave remains the same regardless of the direction of travel. [AI-generated key — verify before high-stakes use]

Related NEET Physics questions

• Two waves represented by \( y_{1}= \) \( 10 \sin (2000 \pi t) \) and \( y_{2}= \) \( 10 \sin (2000 \pi t+\pi / 2) \) are superimposed at any point at a particular instant. The resultant amplitude is?
• The equation of a plane progressive wave is given by \( \boldsymbol{y}=\boldsymbol{A} \sin (\boldsymbol{\omega} \boldsymbol{t}-\boldsymbol{k} \boldsymbol{x}) \) The dimension of \( (\omega / k) \) is that of
• Identify the parameter which measures the time it takes to complete one cycle?
• A vibrator makes \( 150 \mathrm{cm} \) of a string to vibrate in 6 loops in the longitudinal arrangement when it is stretched by 150 N. The entire length of the string is then weighed and is found to weigh \( 400 \mathrm{mg} \) Then This question has multiple correct options
• Which of the following statement regarding transformer is incorrect?
• Electric current flows through:

⚔️ Practice NEET Physics free + battle 1v1 →