Oscillations and Waves (NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics): Questions 144  149 of 195
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Question number: 144
» Oscillations and Waves » Simple Harmonic Motion » Oscillations of a Spring
Question
A spring having a spring constant k is loaded with a mass m. The spring is cut into two equal parts and one of these is loaded again with the same mass. The new spring constant is,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 145
» Oscillations and Waves » Speed of a Wave
Question
The amplitude of a wave, represented by displacement equation will be.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 146
» Oscillations and Waves » Periodic Motion  Period Frequency
Question
The equation of a plane progressive wave is given by . The frequency of this wave would be,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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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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