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Physics 10th Class English Medium Unit 3 Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | Which form of energy is sound: |
<span style="font-size:11.0pt;line-height:107%; font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-fareast-font-family: Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial;mso-bidi-theme-font:minor-bidi;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">Electrical</span> <span style="font-size:11.0pt;line-height:107%; font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-fareast-font-family: Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial;mso-bidi-theme-font:minor-bidi;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">mechanical</span> <span style="font-size:11.0pt;line-height:107%; font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-fareast-font-family: Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial;mso-bidi-theme-font:minor-bidi;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">Thermal</span> <span style="font-size:11.0pt;line-height:107%; font-family:"Calibri",sans-serif;mso-ascii-theme-font:minor-latin;mso-fareast-font-family: Calibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial;mso-bidi-theme-font:minor-bidi;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">Chemical</span> |
| 2 | How does sound travel from its source to your ear: |
<p class="MsoNormal">By changes in air pressure<o:p></o:p></p> <p class="MsoNormal">By vibration in wires or strings<o:p></o:p></p> <p class="MsoNormal">By electromagnetic waves<o:p></o:p></p> <p class="MsoNormal">By infrared waves<o:p></o:p></p> |
| 3 | Which is an example of a longitudinal wave: |
<p class="MsoNormal">Sound wave<o:p></o:p></p> <p class="MsoNormal">Light wave<o:p></o:p></p> <p class="MsoNormal">Radio wave<o:p></o:p></p> <p class="MsoNormal">Water wave<o:p></o:p></p> |
| 4 | The distance between two consecutive waves compressions or
rarefactions is called: |
<p class="MsoNormal">Focal length<o:p></o:p></p> <p class="MsoNormal">Wave length<o:p></o:p></p> <p class="MsoNormal">Frequency<o:p></o:p></p> <p class="MsoNormal">Time period<o:p></o:p></p> |
| 5 | ____________ is always virtual in case of convex mirror. | p image object all of these |
| 6 | Power of convex lens is 10 D. Its focal length is: | 100 m 10 m 1 m 0.1 m |
| 7 | A normal eye can see near objects clearly at a distance of: | 20 cm 25 cm 30 cm 35 cm |
| 8 | Speed of light in air is ms-1 | 3 x 10<sup>8</sup> 3 x 10<sup>11</sup> 3 x 10<sup>5</sup> 340 |
| 9 | Power of lens is: | q/p 1/q 1/p 1/f |
| 10 | The refractive index of air is: | 6 7 2 1,0003 |
| 11 | Sun light consist of ____________ colour | 6 7 5 2 |
| 12 | To see stomach problems we use: | Gastroscope Bronchoscope Cystoscope All of these |
