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In a radio telescope, the shape of the mirror used is
In a radio telescope, the shape of the mirror used is
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Solution
The correct option is B concave
Radio emissions from the sky are detected using radio telescopes. A concave mirror is used in the telescope and the incident radio waves gets reflected by the mirror and converge at the focus where a radio receiver is placed. The information about the object is then gathered by the receiver and is passed on to a computer which analyses and constructs the object's image.
Radio emissions from the sky are detected using radio telescopes. A concave mirror is used in the telescope and the incident radio waves gets reflected by the mirror and converge at the focus where a radio receiver is placed. The information about the object is then gathered by the receiver and is passed on to a computer which analyses and constructs the object's image.
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