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.

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

Length of Pen Answer
  • 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.

Light Dependent Resister? Part -2

b.

Light Dependent Resister? Part -3

c.

Light Dependent Resister? Part -4

d.

Light Dependent Resister? Part -1

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
Light Dependent Resister?

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