Download App

Waves — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsWaves2 Marks
Question
A transverse harmonic wave on a string is described by
$\text{y}(\text{x, t})=3.0\sin\big(36\text{t}+0.018\text{x}+\frac{\pi}{4}\big)$
where x and y are in cm and t in s. The positive direction of x is from left to right.
What is the least distance between two successive crests in the wave?
✓

Answer

3.49m
Explanation:
Given,
$\text{y}(\text{x, t})=3\sin\big(36\text{t}+0.018\text{x}+\frac{\pi}{4}\big)$
the smallest distance between two adjacent crests in the wave, $\lambda=\frac{2\pi}{\text{k}}=\frac{2\pi}{0.018}=349\text{cm}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from Waves→Waves — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

In what ways are the gas thermometers superior to mercury thermometers?
→
Suppose the tube in the previous problem is kept vertical with A upward but the other conditions remain the same. The separation between the cross$-$ sections at $A$ and $B$ is $\frac{15}{16}\text{cm}.$ Repeat parts $(a), (b$) and $(c)$ of the previous problem. Take $g = 10m/s^2$.
→
Figure shows x-t graph of a particle. Find the time t such that the average velocity of the particle during the period 0 to t is zero.
→
Calculate the fall in temperature of helium initially at 15°C, when it is suddenly expanded to 8 times of its volume. Given $\gamma=\frac53.$
→
A sphere starts rolling down an incline of inclination $\theta.$ Find the speed of its centre when it has covered a distance l.
→
Explain temperature on the basis of molecular kinetic theory.
→
Can you ever have a situation in which a light ray goes undeviated through a prism?
→
Can the centre of mass of a body be at a point outside the body?
→
Light from Balmer series of hydrogen is able to eject photoelectrons from a metal. What can be the maximum work function of the metal?
→
Rain is falling vertically. A man running on the road keeps his umbrella tilted but a man standing on the street keeps his umbrella vertical to protect himself from the rain. But both of them keep their umbrella vertical to avoid the vertical sun-rays. Explain.
→