''When parallel sunrays are incident on concave mirror it converges... – InterviewSolution

1.	''When parallel sunrays are incident on concave mirror it converges...meet at focus and hence the solar cooker works'', but sun rays are not parallel at all so how can we say this??
Answer» ''When parallel sunrays are incident on concave mirror it converges...meet at focus and hence the solar cooker works'', but sun rays are not parallel at all so how can we say this??

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