Looking into a mirror one finds his image long and thin; the mirror is …………….
A) parabolic
B) concave
C) convex
D) cylindrical
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The radius of curvature of a concave mirror is 30 cm. If the object placed at 10 cm from the mirror, then the image is
D) Magnified virtual image
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No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be
D) Either plane at Convex
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The minimum distance of an object from concave mirror for which the mirror forms real image is (let T be the focal length of concave mirror)
Correct option is A) f
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An object is kept at the centre of curvature of a concave mirror, the distance between the pole of the mirror and the image
D) equal to ‘2f’
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A student obtained a blurred image of an object on a screen by using a concave mirror. In order to obtain a sharp image on the screen,
D) either away from or towards, the screen depending upon the position of object
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Parallel rays from a distant pole incident on a concave mirror form a sharp image on the screen placed at the focus of the mirror the image will be
A) real & inverted
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A student observed the image of an object placed in front of a plane mirror. He wrote the properties of the image of an object.
D) Distance of the image behind the mirror is greater than the distance of the object from the mirror.
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A concave mirror of focal length ‘f’ produces an image ‘n’ times the size of the object. If the image is real,
A) \(\cfrac{(n+1)f}n\)
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A spherical mirror and a thin spherical lens have each a focal length of – 15 cm. The mirror and the lens are likely to be …………….
B) both are concave
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The image made by a plane mirror is a image. (a) real (b) virtual (c) inverted (d) diminished
Correct option is: (b) virtual
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