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GCSEPhysicsOCRPhysics A (Gateway)Exam Questions5. Waves in MatterWave Interactions

Wave Interactions (OCR GCSE Physics A (Gateway))

Exam Questions

56 mins15 questions

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Wave Interactions

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Wave Interactions

1
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Which diagram shows the correct symbol for a convex lens?

Answer options with vertical arrows: "A" has arrow heads on either end, B has small lines on either end, C has reverse arrow heads at either end and D has small lines at either end but only on the right side.

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2
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Which of the following statements about the refraction of electromagnetic waves is correct?

  • Electromagnetic waves are refracted because each group travels at a different speed in a vacuum.

  • Electromagnetic waves are refracted when they pass between the boundary of two media at 90° to the boundary.

  • Electromagnetic waves are refracted by different amounts when they encounter a material because each grouping travels at different speeds in different materials.

  • Electromagnetic waves are refracted because they all have the same wavelength in all materials.

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31 mark

A ray of green light shines through a glass prism.

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The ray travels through the prism and out of the other side.

Which diagram shows the correct path of the ray?

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    41 mark

    Red light refracts when it enters glass from air because its speed changes.

    q11-paper4-specimen-ocr-gcse-physics

    The red light is replaced by blue light.

    Which statement is correct about the refraction of blue light?

    • It refracts less than red because its speed in glass is greater than red.

    • It refracts less than red because its speed in glass is less than red.

    • It refracts more than red because its speed in glass is greater than red.

    • It refracts more than red because its speed in glass is less than red.

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    51 mark

    Look at the diagrams of a light ray reflecting from two identical surfaces.

    q13-paper4-oct-nov2020-ocr-gcse-physics

    Which diagram is correct?

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      61 mark

      Higher Tier Only

      The diagram shows white light passing through a prism.

      q15-paper4-june2018-ocr-gcse-physics

      A spectrum of colours is seen. It ranges from red to violet.

      Why does the violet light refract more than the red light?

      • Violet light changes frequency more than red light.

      • Violet light has the largest change in speed.

      • Violet light has the smallest change in speed.

      • Violet light increases its speed in the glass prism.

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      71 mark

      Which diagram shows the correct focal length of a convex lens?

      Four lens diagrams labelled A to D show light rays converging through convex lenses, each demonstrating different focal points and distances, as follows: A is parallel to the lens height, B is from the lens to the point where the rays meet, C is the distance from where the rays meet before and after the lens, D is from where the rays meet on the right side to the lens.

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        8
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        Which diagram correctly shows the formation of a real image on a screen?

        All options have one ray passing horizontally from object to lens axis and then down to the right below the axis on the screen. Rays at 2 x focal length, A ray from object to below axis, B ray meets lens at axis and continues to meet the other at the screen. For rays at focal length C has second ray reaching the screen above the axis, D has a ray that meets lens at the axis and meets the other at screen.

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          9
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          Which of the following correctly describes the properties of the image produced by the lens shown in the diagram?

          Diagram of a convex lens showing rays from an object at 2f converging to form an image beyond the lens focal point on the right side.

          • real, diminished, inverted

          • virtual, magnified, inverted

          • real, magnified, inverted

          • virtual, diminished, upright

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          10
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          Which of the following correctly describes the properties of the image produced by the lens shown in the diagram?

          Diagram illustrating ray tracing for a diverging lens, showing an object, image, rays, focal point, and lens curvature.

          • real, diminished, inverted

          • virtual, magnified, inverted

          • real, magnified, inverted

          • virtual, diminished, upright

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