In Kundt's dust tube, dust accumulates at
A) nodes
B) antinodes
C) at the end
D) at troughs only
Correct Answer:
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Q14: Graph of potential energy against distance is
A)curve
B)parabolic
C)hyperbolic
D)straight
Q15: On all instruments like measuring cylinder, pipette
Q16: In a weather map, lines joining all
Q17: For a given system, the minimum frequency
Q18: In an electric field, energy per unit
Q20: A node having twice the frequency of
Q21: If frequency of certain wave is f,
Q22: Origin of gravitational field is
A)charges
B)masses
C)Earth's core
D)matter
Q23: At separation between a node and antinode,
Q24: If the plates of capacitor are oppositely
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