IGCSE Physics Paper-1: Specimen Questions with Answers 112 - 114 of 149
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Question 112
Question
MCQ▾Which particles do not experience an electromagnetic force?
Choices
| Choice (4) | |
|---|---|
a. | gamma rays |
b. | particles |
c. | Electrons |
d. | protons |
Answer
d.Explanation
- Charged particles interact by emitting and absorbing photons.
- Photons do not experience an electromagnetic force,
- And they do not interact with each other.
- The electromagnetism is produced by the energy and momentum they carry.
Question 113
Question
MCQ▾A ruler is used to measure length of pen.
What would be the length of the pen?
Choices
| Choice (4) | |
|---|---|
a. | 47 cm |
b. | 41 cm |
c. | 39 cm |
d. | 50 cm |
Answer
a.Explanation
- The length of the pen would be 47 cm.
- The tip of the pen is at 6 cm on scale and end of the pen at 53 cm.
- The required length is .
Question 114
Question
MCQ▾Which of the following symbol is for the Light Dependent Resister?
Choices
| Choice (4) | |
|---|---|
a. |  |
b. |  |
c. |  |
d. |  |
Answer
c.Explanation
- In the dark conditions the Light dependent resistor LDR has a high resistance.
- In the light the resistance of the LDR is very low.
- The symbol of the Light Dependent Resistor is
