1 |
Which gas behaves as glass or polythene to radiation: |
- A. Nitrogen
- B. Hydrogen
- C. Carbon di oxide
- D. Methane
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2 |
Which one of the following converts light energy into electrical energy? |
- A. Electric Bulb
- B. Electric generator
- C. Photocell
- D. Electric cell
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3 |
Perpendicular / Hypotenuse is called : |
- A. Cos 𝜽
- B. Sin 𝜽
- C. Tan 𝜽
- D. Tan<sup>-1</sup> 𝜽
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4 |
Law of motion was presented by the scientist. |
- A. Einstein
- B. Newton
- C. Galileo
- D. Archimedes
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5 |
Sliding friction can be changed into rolling friction by using: |
- A. Ball bearing
- B. Roller bearing
- C. Both a and b
- D. None of these
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6 |
P.E is equal to: |
- A. mgh
- B. 1/2 mv<sup>2</sup>
- C. W x F
- D. None of these
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7 |
Which of the following relation is correct? |
- A. F = m/a
- B. F = m-a
- C. F = ma
- D. F = m + a
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8 |
According to Archimedes principle upthrust is equal to |
- A. weight of displaced liquid
- B. volume of displaced liquid
- C. mass of displaced liquid
- D. are of displaced liquid
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9 |
Process by which liquids changes into vapors is ............... . |
- A. Vaporization
- B. Evaporation
- C. Boiling
- D. None of above
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10 |
Good conductor is : |
- A. Air
- B. Wood
- C. Iron
- D. None
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