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Reflection of Light - 02
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Q.1. In a convex spherical mirror, reflection of light takes place at :
*
1 point
a bent-in surface
an uneven surface
a flat surface
a bulging-out surface
Q.2. A diverging mirror is :
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1 point
a convex mirror
a plane mirror
a shaving mirror
a concave mirror
Other:
Q.3. If R is the radius of curvature of a spherical mirror and f is its focal length, then :
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1 point
R = 2f
R = 3f
R = f
R = f/2
Q.4. The focal length of a spherical mirror of radius of curvature 30 cm is :
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1 point
15 cm
10 cm
30 cm
20 cm
Q.5. If the focal length of a spherical mirror is 12.5 less cm, its radius of curvature will be :
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1 point
35 cm
25 cm
20 cm
15 cm
Q.6. The real image formed by a concave mirror is larger than the object when the object is :
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1 point
between focus and centre of curvature
at a distance equal to radius of curvature
at a distance greater than radius of curvature
at a distance less than the focal length
Q.7. The real image formed by a concave mirror is smaller than the object if the object is :
*
1 point
at a distance equal to focal length
at a distance equal to radius of curvature
at a distance greater than radius of curvature
between centre of curvature and focus
Q.8. The image formed by a concave mirror is virtual, erect and magnified. The position of object is :
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1 point
between focus and centre of curvature
at pole
at focus
between pole and focus
Q.9. The image formed by a concave mirror is real, inverted and of the same size as the object. The position ofthe object must then be :
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1 point
between the centre of curvature and focus
at the focus
beyond the centre of curvature
at the centre of curvature
Q.10. The image formed by a concave mirror is real, inverted and highly diminished (much smaller than the object). The object must be :
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1 point
at the centre of curvature
between pole and focus
at infinity
at focus
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