Question
Because of tilting which waves finally disappear

Answer

(b)

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

Similar questions

A current of $3$ $amp$ is flowing in a plane circular coil of radius $4\, cm$ and number of turns $20$. The coil is placed in a uniform magnetic field of magnetic induction $0.5\, tesla$. Then, the dipole moment of the coil is.....$A-m^2$
$Y$ is
A triatomic, diatomic and monatomic gas is supplied same amount of heat at constant pressure, then
A tank is filled upto a height $h$ with a liquid and is placed on a platform of height h from the ground. To get maximum range ${x_m}$ a small hole is punched at a distance of $y$ from the free surface of the liquid. Then
A disc is given angular velocity ${\omega _0}$ as shown in figure and kept on an inclined plane of inclination $\theta $ having coefficient of friction $\mu$ = $tan \theta $ . The initial acceleration of centre of mass is $a$ and angular acceleration $\alpha $ , then
Four convergent lenses have focal lengths $100 \,cm, 10 \,cm, 4 \,cm$ and $0.3\, cm$. For a telescope with maximum possible magnification, we choose the lenses of focal length
If radius of first orbit of hydrogen atom is $5.29 \times 10^{-11} \,m$, the radius of fourth orbit will be ......... $\mathring A$
A rectangles solid box of length $0.3\, m$ is held horizontally, with one of its sides on the edge of a platform of height $5\,m$. When released, it slips off the table in a very short time $= 0.01\, s$, remaining essentially horizontal. The angle by which it would rotate when it hits the ground will be (in radians) close to:
The time period of polar satellites is about ..........
Inductance $L$ can be dimensionally represented as