(d) Different frequencies/ wavelengths /signals Accept: require different detectors/telescopes Different telescopes detect different OR signals Certain detectors/telescopes cannot pick up certain frequencies/wavelengths/signals Do not accept: OR 1 of unless ‘Different types signals’- Different signals have different frequencies/ mentioned along with different wavelengths wavelengths/frequencies/telescopes/ detectors. of ambiguous “types radiation” – – could be or α β Any mention of sound of “types or too vague wave” “wave” –
(d) Different frequencies/ wavelengths /signals require different detectors/telescopes OR Certain detectors/telescopes cannot pick up certain frequencies/wavelengths/signals OR Different signals have different frequencies/ wavelengths 1 Accept: Different telescopes detect different signals Do not accept: ‘Different types of signals’- unless mentioned along with different wavelengths/frequencies/telescopes/ detectors. “types of radiation” – ambiguous – could be α or β Any mention of sound “types of wave” or “wave” – too vague
Physics-N5-Past-Paper-Questions-Dynamics-and-Space.docx