Oscillations and Waves-Speed of a Wave [JEE (Based on NTA Guidelines-IIT Engg.) Mains Physics]: Questions 1 - 4 of 26
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Question 1
Question MCQ▾
V1 and V2 are the velocities of sound at the same temperature in two monoatomic gases of densities ρ1 and ρ2 respectively. If then the ratio of velocities V1 and V2 will be,
Choices
Choice (4) | Response | |
---|---|---|
a. | 4: 1 | |
b. | 1: 2 | |
c. | 2: 1 | |
d. | 1: 4 |
Question 2
Question MCQ▾
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 3
Question MCQ▾
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 4
Question MCQ▾
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 |