Question
A wave pulse passing on a string with a speed of 40cm/s in the negative x-direction has its maximum at x = 0 at t = 0. Where will this maximum be located at t = 5s?
✓
Answer
v = 40cm/sec
As velocity of a wave is constant location of maximum after 5sec
= 40 × 5 = 200cm along negative x-axis.
As velocity of a wave is constant location of maximum after 5sec
= 40 × 5 = 200cm along negative x-axis.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A mobile phone lies along the principal axis of a concave mirror, as shown in Fig. 9.7. Show by suitable diagram, the formation of its image. Explain why the magnification is not uniform. Will the distortion of image depend on the location of the phone with respect to the mirror?
In which configuration will an electric dipole be in (i) permanent and (ii) temporary equilibrium when placed under a uniform electric field?
Equal currents are flowing through two infinitely long parallel wires. What will be the magnetic field at a point midway when the currents are flowing in the same direction?
Which of the statements is true for p-type semiconductos.
- Electrons are majority carriers and trivalent atoms are the dopants.
- Electrons are minority carriers and pentavalent atoms are the dopants.
- Holes are minority carriers and pentavalent atoms are the dopants.
- Holes are majority carriers and trivalent atoms are the dopants.
A long solenoid is fabricated by closely winding a wire of radius 0.5mm over a cylindrical nonmagnetic frame so that the successive turns nearly touch each other. What would be the magnetic field B at the centre of the solenoid if it carries a current of 5A?
A point charge Q is placed at point ‘O’ as shown in the figure. Is the potential at point A, i.e. VA, greater, smaller or equal to potential, VB, at point B, when Q is (i) positive, and (ii) negative charge?
What is called depletion region?
State the condition under which the terminal pd across a battery and its emf are equal.
In a TV tube, electrons are accelerated from the rear to the front. What is the direction of the current?