New chat PYQ Library Doubts Rank report

Sign in to see Recents

Sign in to save progress →

Waves question

2016 · Shift 0 · Q53

Guest · try one question or challengeGuest · try one question or challenge

PYQ Library
JEE Main
Physics
Waves
2016 · Shift 0 · Q53

Waves question

2016 · Shift 0 · Q53

JEE MainPhysicsWavesMCQ+4 / −1

A uniform string of length

20m

is suspended from a rigid support. A short wave pulse is introduced at its lowest end. It starts moving up the string. The time taken to reach the supports is : (take

{\,\,g = 10m{s^{ - 2}}}

)

A
$2\sqrt 2 s$
B
$2\pi \sqrt 2 s$
C
$2\pi \sqrt 2 s$
D
$2s$

More from Waves

A pipe of length $85 c m$ is closed from one end. Find the number of possible natural oscillations of air column in the pipe whose frequencies lie below $1250 H z$ . The velocity of sound in air is $340 m / s$ .2014 · MCQ
A sonometer wire of length $7.7 \times 1 0^{3} k g / m^{3}$ is made of steel. The tension in it produces an elastic strain of $1%$ . What is the fundamental frequency of steel if density and elasticity of steel are $7.7 \times 1 0^{3} k g / m^{3}$ and $2.2 \times 1 0^{11} N / m^{2}$ …2013 · MCQ
A cylindrical tube, open at both ends, has a fundamental frequency, $f,$ in air. The tube is dipped vertically in water so that half of it is in water. The fundamental frequency of the air-column is now :2012 · MCQ
The transverse displacement $y (x, t)$ of a wave on a string is given by $y (x, t) = e^{- (a x^{2} + b t^{2} + 2 ab x t)} .$ This represents $a :$ 2011 · MCQ
The equation of a wave on a string of linear mass density $0.04 k g m^{- 1}$ is given by $y = 0.02 (m) sin [2 π (\frac{t}{0.04 ( s )} - \frac{x}{0.50 ( m )})] .$ The…2010 · MCQ
Three sound waves of equal amplitudes have frequencies $(v - 1), v, (v + 1) .$ They superpose to give beats. The number of beats produced per second will be :2009 · MCQ
A wave travelling along the $x$ -axis is described by the equation $y (x, t) = 0.005$ $cos (α x - β t) .$ If the wavelength and the time period of the wave are $0.08 m$ and $β$ , respectively, then $α$ and $β$ …2008 · MCQ
While measuring the speed of sound by performing a resonance column experiment, a student gets the first resonance condition at a column length of $18 c m$ during winter. Repeating the same experiment during summer, she measures the column…2008 · MCQ