2
Question
Large aperture objective is used in telescopes as it helps in
Large aperture objective is used in telescopes as it helps in
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Solution
The correct options are
B increasing the brightness of image
D increasing intensity by gathering more light
The larger the objective, the more light the telescope collects and increases the brightness of image .The field of view of the telescope decreases as the aperture increases, but the resolving power increases.
The objective lens of a telescope forms an real image of the night sky, the size of that image is in proportion to the focal length of the objective lens. It increases with increase in size of objective lens.
B increasing the brightness of image
D increasing intensity by gathering more light
The larger the objective, the more light the telescope collects and increases the brightness of image .
The field of view of the telescope decreases as the aperture increases, but the resolving power increases.
The objective lens of a telescope forms an real image of the night sky, the size of that image is in proportion to the focal length of the objective lens. It increases with increase in size of objective lens.
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