1
JEE Advanced 2013 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2

A horizontal stretched string, fixed at two ends, is vibrating in its fifth harmonic according to the equation

y(x, t) = (0.01 m) sin[(62.8 m$$-$$1)x] cos[(628 s$$-$$1)t]

Assuming $$\pi$$ = 3.14, the correct statement(s) is(are)

A
The number of nodes is 5.
B
The length of the string is 0.25 m.
C
The maximum displacement of the mid-point of the string, from its equilibrium position is 0.01 m.
D
The fundamental frequency is 100 Hz.
2
IIT-JEE 2009 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-2

Under the influence of the Coulomb field of charge +Q, a charge $$-$$q is moving around it in an elliptical orbit. Find out the correct statement(s):

A
The angular momentum of the charge $$-$$q is constant.
B
The linear momentum of the charge $$-$$q is constant.
C
The angular velocity of the charge $$-$$q is constant.
D
The linear speed of the charge $$-$$q is constant.
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