1
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
A transverse wave is represented by
y = Asin($$\omega $$t $$-$$ kx). For what value of the wavelength is the wave velocity equal to the maximum particle velocity ?
A
$$\pi A/2$$
B
$$\pi A$$
C
2$$\pi A$$
D
$$A$$
2
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
A tuning fork of frequency 512 Hz makes 4 beats per second with the vibrating string of a piano. The beat frequency decreases to 2 beats per sec when the tension in the piano string is slightly increased. The frequency of the piano string before increasing the tension was
A
510 Hz
B
514 Hz
C
516 Hz
D
508 Hz
3
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Each of the two strings of length 51.6 cm and 49.1 cm are tensioned separately by 20 N force. Mass per unit length of both the strings is same and equal to 1 g/m. When both the strings vibrate simultaneously the number of beats is
A
7
B
8
C
3
D
5
4
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
A wave in a string has an amplitude of 2 cm. The wave travels in the +ve direction of x axis with a speed of 128 m/s. and it is noted that 5 complete waves fit in 4m length of the string. The equation describing the wave is
A
y = (0.02) m sin (15.7 x $$-$$ 2010t)
B
y = (0.02) m sin (15.7 x + 2010t)
C
y = (0.02) m sin (7.85 x $$-$$ 1005t)
D
y = (0.02) m sin (7.85 x + 1005t)
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