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QAIPMT-2010-Ph-1972: NEET 2010 Physics - Class 12 AIPMT-2010-Ph-1972 Solution: Two identical bar magnets are fixed with their centers at a…
Two identical bar magnets are fixed with their centers at a distance d apart. A stationary charge Q is placed at P in between the gap of the two magnets at a distance D from the centre O as shown in the figure The force on the charge Q is zero directed along OP directed along PO directed perpendicular to the plane of paper
Multiple Choice Options
- A (3) and (4)
- B (1) and (2)
- C (2) and (3)
- D (1) and (3)
Step-by-Step Verified Solution
As given, E = 10 cos _ ( 10 7 t + k x ) j ^ V / m
here amplitude E 0 = 10 V/m and _ = 10 7 rad/s
As c = _ _ = _ _ 2 �
_ _ = 2 � c _ = 2 � _ 3 _ 10 8 10 7 = 188.4 m
Also, c = _ k
_ k = _ c = 10 7 3 _ 10 8 = 0.033
The wave is propagating along y direction.