Oscillations and WavesSpeed of a Wave (NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics): Questions 1  4 of 9
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Question number: 1
» Oscillations and Waves » Speed of a Wave
Question
V _{1} and V _{2} are the velocities of sound at the same temperature in two monoatomic gases of densities ρ _{1} and ρ _{2} respectively. If then the ratio of velocities V _{1} and V _{2} will be,
Choices
Choice (4)  Response  

a.  4: 1  
b.  1: 2  
c.  2: 1  
d.  1: 4 
Question number: 2
» Oscillations and Waves » Speed of a Wave
Question
A wave represented by the given equation where x is in meter and t is in second. The expression represents,
(1) A wave travelling in the negative X direction with a velocity of 1.5 m/sec
(2) A wave travelling in the negative X direction with a wavelength of 0.2 m
(3) A wave travelling in the positive X direction with a velocity of 1.5 m/sec.
(4) A wave travelling in the positive X direction with a wavelength of 0.2 m
Select the correct answers and mark it according to the following codes:
Choices
Choice (4)  Response  

a.  1 and 3 are correct  
b.  1,2 and 3 are correct  
c.  1 and 2 are correct  
d.  2 and 4 are correct 
Question number: 3
» Oscillations and Waves » Speed of a Wave
Question
A transverse wave is represented by the equation , Here v = wave velocity. For what value of x, the maximum particle velocity equal to two times the wave velocity
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 4
» Oscillations and Waves » Speed of a Wave
Question
A wave of frequency 400 Hz has velocity 360 m/sec. The distance between two nearest points 60° out of phase, is
Choices
Choice (4)  Response  

a.  15 cm  
b.  60 cm  
c.  0.6 cm  
d.  12 cm 