1

JEE Main 2022 (Online) 28th June Morning Shift

MCQ (Single Correct Answer)

+4

-1

The velocity of sound in a gas, in which two wavelengths 4.08 m and 4.16 m produce 40 beats in 12s, will be :

2

JEE Main 2022 (Online) 27th June Evening Shift

MCQ (Single Correct Answer)

+4

-1

If a wave gets refracted into a denser medium, then which of the following is true?

3

JEE Main 2022 (Online) 27th June Morning Shift

MCQ (Single Correct Answer)

+4

-1

Out of Syllabus

An observer moves towards a stationary source of sound with a velocity equal to one-fifth of the velocity of sound. The percentage change in the frequency will be :

4

JEE Main 2022 (Online) 24th June Morning Shift

MCQ (Single Correct Answer)

+4

-1

The equations of two waves are given by :

y_{1} = 5 sin 2$$\pi$$(x - vt) cm

y_{2} = 3 sin 2$$\pi$$(x $$-$$ vt + 1.5) cm

These waves are simultaneously passing through a string. The amplitude of the resulting wave is :

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