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Two point charges each are placed at and . The force between those charges is
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Correct option is D
The separation between the charges (2−1)2+(3−1)2+(3−1)2m=3m The force between the charges F=14πε0q1q2r2=9×109×10−1232=10−3N
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ABC is an isosceles right angled triangle with the angle BAC 90o. A ray of light parallel to the base BC strikes the face AB. The refracted ray in the prism strikes the base BC. If the refractive index of the material of the prism is , find the total angle of deviation of the final emergent ray
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