EASY

JEE Main/Advance

IMPORTANT

Earn 100

A plane wave $y = a \sin (b x + c t)$ is incident on a surface. Equation of the reflected wave is $y^{'} = a^{'} \sin (ct - b x)$ . Which of the following statements is not correct?

50% studentsanswered this correctly

Important Questions on Wave Motion on a String

EASY

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 25

The equation

y = a \sin 2 π / λ (v t - x)

is expression for:-

MEDIUM

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 26

Standing waves are produced in a $10$ $\mathrm{m}$ long stretched string. If the string vibrates in five segments and the wave velocity is $20 m s^{- 1}$ , the frequency is,

MEDIUM

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 27

A wave is represented by the equation

y = a \sin (k x - ω t)

is superimposed with another wave to form a stationary wave such that the point

x = 0

is a node. Then the equation of other wave is:-

EASY

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 28

A standing wave having

3

nodes and

2

antinodes is formed between

1.21 Å

distance then the wavelength is:-

EASY

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 29

A string is cut into three parts, having fundamental frequencies

n_{1}, n_{2}

and

n_{3}

respectively. Then original fundamental frequency

' n'

related by the expression as (other quantities are identical):-

MEDIUM

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 30

An object of specific gravity

ρ

is hung from a thin steel wire. The fundamental frequency for transverse standing waves in the wire is

300 H z

. The object is immersed in water, so that one half of its volume is submerged. The new fundamental frequency (in

H z

) is:-

EASY

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 31

Microwaves from a transmitter are directed normally towards a plane reflector. A detector moves along the normal to the reflector. Between positions of

14

successive maxima, the detector travels a distance

0.14 m

. If the velocity of light is

3 \times 10^{8} m / s

, find the frequency of the transmitter.

EASY

JEE Main/Advance

IMPORTANT

Beta Question Bank for Engineering: Physics>Chapter 20 - Wave Motion on a String>Exercise-1>Q 32

An underwater sonar source operating at a frequency of

60 kHz

directs its beam towards the surface. If velocity of sound in air is

330 {ms}^{- 1}

, wavelength and frequency of the waves in air are

A plane wave y=asin(bx+ct) is incident on a surface. Equation of the reflected wave is y'=a'sin(ct-bx). Which of the following statements is not correct?

Important Questions on Wave Motion on a String

Learn and Prepare for any exam you want !

A plane wave $y = a \sin (b x + c t)$ is incident on a surface. Equation of the reflected wave is $y^{'} = a^{'} \sin (ct - b x)$ . Which of the following statements is not correct?