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

Question number: 132

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Question

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

Image of Magnetic

Image of Magnetic

Choices

Choice (4)Response

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

Question number: 133

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Question

Which is the scalar quantity?

Choices

Choice (4)Response

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 number: 134

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Question

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

Choices

Choice (4)Response

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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