GENERAL INSTRUCTIONS (Please read the following instructions very carefully)
1. Question marks are mentioned with each Question.
2. Please write neat and clean hand-writing on Answer Sheet. Use Margin on right side and left side of Answer Sheet.
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4. Do not click the button Submit Test before completing the paper on Answer Sheet.
5. This is a ONE TIME attempt test. Once started, it cannot be reversed or attempted again.
6. Take photo of all the Sheets and make single pdf file.
1
The light incident on a smooth surface reflected in a single direction is called as ____________________ reflection.
Regular
Irregular
Diffuse
None of these.
2
In a concave mirror, if the object is placed between C and F, than the image is formed __________________.
At the focus F
between F and C
At C
Between C and infinity
3
_________________ is the geometrical centre of the spherical reflecting surface.
Center of curvature
Pole
Linear aperture
None of these
4
_______________________ is defined as the process of turning back of light in the same medium on striking the surface of the object.
Refraction
Reflection
Dispersion
5
The image formed by a plane mirror is _____________________________ .
Rectangular
Erect
Perpendicular
None of these .
6
The images that can be formed on the screen are called _________________ images.
Real
Virtual
Both (a) and (b) is correct.
7
Which of the following are correct :
(a) Light travels along straight lines in a medium or in vacuum.
(b) Reflection happens when light get absorbed by the medium like glass and does not get reflected, absorbed and scattered.
Only (a) is correct.
Only (b) is correct.
Both (a) and (b) are correct.
8
(a) Centre of Curvature (C) is the centre of sphere of which the mirror is a part.
(b) Radius of Curvature (R) is the radius of the sphere of which the mirror is a part.
(c) Pole (P) is the geometrical centre of the spherical reflecting surface.
Only (a) and (b) are correct.
Only (b) and (c) are correct.
Only (a) and (c) are correct.
All of these.
9
(a) When the extended object is placed perpendicularly at the principal axis of a spherical mirror, the image of the extended object can be formed by locating the images of the individual point of the object.
(b) The rays coming parallel to the principal axis, pass through the focus after reflection in concave mirror or appear to come from focus in the case of convex mirror.
10
(a) In a convex mirror, if object is at infinity, the image formed at the focus F, than the nature of image is Virtual, point -sized.
(b) In a convex mirror, if object is at infinity, the image formed at the focus F, than the nature of image is Virtual, smaller and erect.
(c) In a convex mirror, if object is between infinity and the pole, the image formed between focus and the pole, than the nature of image is virtual, smaller and erect.