| 1 |
The totally reflectiing prism one angle is of: |
- A. 45<sup>o</sup>
- B. 90<sup>o</sup>
- C. 180<sup>o</sup>
- D. 120<sup>o</sup>
|
| 2 |
The ray of light striking to the side of prism is called: |
- A. refraction ray
- B. incident ray
- C. reflected ray
- D. emergent ray
|
| 3 |
Focal length for concave mirror is : |
- A. -ve
- B. +ve
- C. same
- D. none of these
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| 4 |
<p class="MsoNormal">From which of the following we can get information almost
about everything:<o:p></o:p></p> |
- A. <p class="MsoNormal">Book<o:p></o:p></p>
- B. <p class="MsoNormal">Teacher<o:p></o:p></p>
- C. <p class="MsoNormal">Computer<o:p></o:p></p>
- D. <p class="MsoNormal">Internet<o:p></o:p></p>
|
| 5 |
If a ray of light is glass is incident on an air surface at an angle greater than the critical angle, the ray will. |
- A. refract only
- B. reflect only
- C. partially refract and partially reflect
- D. Diffract only
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| 6 |
To see from submarine the ship at the surface of water , we use: |
- A. Telescope
- B. Microscope
- C. Peri scope
- D. Prism
|
| 7 |
Which types of image is produced by the converging lens of human eye if it view a distant object? |
- A. Real , erect, same size
- B. Real, inverted, diminshed
- C. Virtual, erect,diminshed
- D. Virtual, inverted, magnified
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| 8 |
<p class="MsoNormal">The loudness of a sound is most closely related to its:<o:p></o:p></p> |
- A. <p class="MsoNormal">Frequency<o:p></o:p></p>
- B. <p class="MsoNormal">Period<o:p></o:p></p>
- C. <p class="MsoNormal">Wavelength<o:p></o:p></p>
- D. <p class="MsoNormal">Amplitude<o:p></o:p></p>
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| 9 |
The mirror whose outer surface is reflecting is called: |
- A. Concave mirror
- B. Convex mirror
- C. Lens
- D. Mirror
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| 10 |
The distance between principal focus and pole of mirror is called: |
- A. Princpal focus
- B. Focal length
- C. P
- D. Image
|