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Question 19M.3.SL.TZ2.4aii

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.3.SL.TZ2.4aii
Level SL Paper 3 Time zone TZ2
Command term Calculate Question number aii Adapted from N/A
aii.
[Maximum mark: 1]
19M.3.SL.TZ2.4aii

The speed of a spaceship is measured to be 0.50c by an observer at rest in the Earth’s reference frame.

(aii)

As the spaceship passes the Earth it emits a flash of light that travels in the same direction as the spaceship with speed c as measured by an observer on the spaceship. Calculate, according to the Galilean transformation, the speed of the light in the Earth’s reference frame.

[1]

Markscheme

1.5c ✔

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Almost no incorrect answers were seen.

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