IGCSE Physics Paper-1: Specimen Questions with Answers 132 - 134 of 149

Question 132

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Question

MCQ▾

When a cathode ray beam passes through a magnetic field in which point is the beam deflected.

Image of Magnetic

Image of Magnetic

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Choices

Choice (4)
a.Downwards
b.1
c.3
d.2

Answer

a.

Explanation

  • When a cathode ray beam passes through a magnetic field,
  • The beam deflected towards downward.
  • When the cathode ray beam passes through an electric field,
  • The beam deflected towards upwards at the end of the cathode ray tube
Image of the Magnetic

Image of the Magnetic

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Question 133

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Question

MCQ▾

Which is the scalar quantity?

Choices

Choice (4)
a.force
b.pressure
c.acceleration
d.weight

Answer

c.

Explanation

  • Scalar quantities are having only magnitude but the vector quantities have both magnitude and direction.
  • The vector quantities are
    • Acceleration
    • Velocity
    • Force
    • Displacement
    • Momentum
    • Weight

Everything else is a scalar quantity.

Question 134

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Question

MCQ▾

In the circuit below, one lamps break, causing all the other lamps to go out. Which lamp breaks?

Image of Lamps break

Image of Lamps Break

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Choices

Choice (4)
a.3
b.4
c.1
d.2

Answer

d.

Explanation

  • Circuit must be closed to pass the current in it.
  • The given Circuit is in series.
  • When the lamp B breaks no current would flow from lamp B to other.

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