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MERGED ACTUAL OCR 2024 OCR AS Level PHYSICS A May-June 2024 Question Paper 1 WITH MARK SCHEME
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MERGED ACTUAL OCR 2024 OCR AS Level PHYSICS A May-June 2024 Question Paper 1 WITH MARK SCHEME
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JUNE 2024OCR
A/AS LEVEL
PASTPAPER
WITH
MARKSCHEME
Turn over
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, 2
Section A
You should spend a maximum of 25 minutes on this section.
Write your answer to each question in the box provided.
1 Which is an S.I. base unit?
A amp
B coulomb
C ohm
D volt
Your answer [1]
2 Two waves, of wavelength λ, undergo constructive interference.
What is a possible path difference between the two waves?
λ
A
4
λ
B
2
3λ
C
2
D λ
Your answer [1]
© OCR 2024
, 3
3 A copper wire P has electrical resistance R and number density of charge carriers n.
A copper wire Q has:
• area of cross section equal to P
• twice the length of P.
Which row gives the correct values of resistance and number density of charge carriers for Q?
Resistance of Q Number density of charge carriers in Q
R
A n
2
R
B 2n
2
C 2R n
D 2R 2n
Your answer [1]
4 The light emitted by a laptop screen is polarised.
The laptop screen is viewed through a polarising filter.
Initially the brightness of the screen appears normal.
The filter is rotated gradually through an angle of 180°.
How does the brightness of the laptop screen appear after the filter has been rotated by 90°, and
then by 180°?
After a rotation of 90 After a rotation of 180
A Dark Dark
B Dark Normal
C Normal Dark
D Normal Normal
Your answer [1]
© OCR 2024 Turn over
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