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.
3. Do not refresh or back page.
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
Solar eclipse occurs on _____________ .
Every new moon's day
Certain new moon's day
Every full moon's day
None of these .
2
The ray of light, coming towards the mirror, is called the _______________________ .
Reflected Rays
Refracted Rays
Incident Rays
3
Human eye acts very much like a __________________.
Plane mirror
Pinhole camera
Glass slab
4
An inverted image is the characteristic of a __________________________ .
Shadow
Pin hole camera
Reflected image
5
When does Lunar Eclipse occur?
Half moon
Full moon
Equinox
6
The size of the image formed by __________________ mirror is equal to that of the object.
Concave mirror
Convex mirror
None of these
7
Pericscope works on the principal of _____ of light.
Reflection
Refrantion
shadow
8
The image formed by a plane mirror is _____________________________ .
Rectangular
Erect
Perpendicular
9
The angle between the normal and the reflected ray, at the point of incidence, is called _________________ .
Angle of reflection .
Plane of reflection
Irregular reflection .
10
A solar eclipse can occur only on a ____________________.
New moon day
Full moon day
No moon day
None of the above
11
Which of the following are correct ?
(a) A pinhole camera is a device which forms a photograph like image of a stationary bright object on a screen.
(b) A pinhole camera is a simple device that works on the principle of rectilinear propagation of light.
Only (a) and (b) is correct .
Only (b) and (c) is correct .
Both (a) and (b) is correct .
12
The small bumps and irregularities on a rough surface cause each of the light rays to reflect in different directions. This kind of reflection is called ____________ reflection.
Regular
Irregular
Diffused
Both (b) and (c) are correct.
13
What is the correct alignment during a solar eclipse?
Sun, Moon, Earth
Moon, Sun, Earth
Sun, Earth, Moon
14
Which of the following are correct :
(a) The image is laterally inverted means that in the image formed by a plane mirror, the left and right sides are reversed.
(b) The image is laterally inverted means that in the image formed by a plane mirror, the top and bottom sides are reversed.
(c) A plane mirror forms a virtual image, Such an image is nor formed by the actual intersection of light rays and cannot be formed on a screen.
Only (a) is correct.
Only (a) and (b) are correct.
Only (b) and (c) are correct.
Only (a) and (c) are correct.
15
(a) Plane mirror are used as looking mirrors in our homes.
(b) A plane mirror is made from a glass plate, a few millimetres thick.
(c) One surface of the glass is polished to a high degree of smoothness, forming the front surface of the mirror.
(d) The back surface of mirror is silvered, i.e., coated with a thin layer of silver, aluminium or some other shiny, opaque material.
Only (a) and (d) are correct.
All of these.