1
JEE Advanced 2015 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2
Two independent harmonic oscillators of equal masses are oscillating about the origin with angular frequencies $$\omega$$1 and $$\omega$$2 and have total energies E1 and E2, respectively. The variations of their momenta p with positions x are shown in the figures. If $${a \over b} = {n^2}$$ and $${a \over R} = n$$, then the correct equations is/are
JEE Advanced 2015 Paper 1 Offline Physics - Simple Harmonic Motion Question 19 English
A
E1$$\omega$$1 = E2$$\omega$$2
B
$${{{\omega _2}} \over {{\omega _1}}} = {n^2}$$
C
$${\omega _1}{\omega _2} = {n^2}$$
D
$${{{E_1}} \over {{\omega _1}}} = {{{E_2}} \over {{\omega _2}}}$$
2
IIT-JEE 2009 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-2

A student performed the experiment to measure the speed of sound in air using resonance air-column method. Two resonances in the air-column were obtained by lowering the water level. The resonance with the shorter air-column is the first resonance and that with the longer air-column is the second resonance. Then,

A
the intensity of the sound heard at the first resonance was more than that at the second resonance.
B
the prongs of the tuning fork were kept in a horizontal plane above the resonance tube.
C
the amplitude of vibration of the ends of the prongs is typically around 1 cm.
D
the length of the air-column at the first resonance was somewhat shorter than 1/4th of the wavelength of the sound in air.
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