Question

 mesons can be

(a)  or

(b) or

(c) or

(d) or

Answer

(d) or

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A ray of light is incident at an angle i from denser to rare medium. The reflected and the refracted rays are mutually perpendicular. The angle of reflection and the angle of refraction are respectively r and r’, then the critical angle will be

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(b)

(c)

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(a) A

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  2. From the p-side to the n-side.
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