Oscillations and Waves (NEET (NTANational Eligibility cum Medical Entrance Test) Physics): Questions 147  150 of 195
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Question number: 147
» Oscillations and Waves » Displacement Relation for a Progressive Wave
Question
The displacement due to a wave moving in the positive x –direction is given by
at time t = 0 and by at t = 2 seconds, where x and y are in meter. The velocity of the wave in m/s is,
Choices
Choice (4)  Response  

a.  0.5 

b.  2 

c.  1 

d.  4 

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Question number: 148
» Oscillations and Waves » Periodic Functions
Question
Two masses m _{1} and m _{2} are suspended together by a massless spring of constant k. When the masses are in equilibrium, m _{1 } is removed without disturbing the system. The amplitude of oscillations is,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 149
» Oscillations and Waves » Simple Harmonic Motion » Oscillations of a Spring
Question
A particle of mass m is attached to three identical springs A, B and C each of force constant k. If the particle of mass m is pushed slightly against the spring A and released then the time period of oscillations is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 150
» Oscillations and Waves » Displacement Relation for a Progressive Wave
Question
A wave travelling in positive Xdirection with A = 1.2 m has a velocity of 240 m/sec. If λ = 40 m, then correct expression for the wave is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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