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Question1

Consider an array of parallel wires with uniform spacing of 1.30 cm between centers. In air at 20.0°C, ultrasound with a frequency of 37.2 kHz from a distant source is incident perpendicular to the array.

(a) Find out the number of directions on the other side of the array in that there is a maximum of intensity.

(b) Find out an angle for each of these directions relative to the direction of incident beam.

Question2

A particle with charge q = -5.60 x 10-9 C is moving in a uniform magnetic field B = -(1.25 T) . The magnetic force on the particle is measured to be F = - (3.40 x 10-7 N) + (7.40 x 10-7 N)

(a) Compute all the components of the velocity of the particle that you can from this information.

(b) Are there components of velocity that are not determined by the capacity of the force?

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Category:- Physics
Reference No.:- M9719539

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