Physics B (Advancing Physics) H157: Imaging and signalling Topical Past Paper Questions

(a) Fig. 1.1 shows two polarising filters P and Q, placed between a lamp and a detector. Fig. 1.1 Initially the polarising filters are orientated with their planes of polarisation parallel to each other. Q is then rotated, as shown, about the beam of light travelling from the lam…

This question is about recording music. (a) Fig. 7.1 shows an oscilloscope trace of a musical note played by a clarinet. Fig. 7.1 (i) Use data from Fig. 7.1 to make as accurate an estimate as possible of the frequency f of the musical note together with the uncertainty $ \Delta f…

A converging lens is used to project an image of a candle onto a piece of card. The power of the lens is 2.0D. The candle flame produces light with circular wavefronts. The curvature of these wavefronts at the lens is $ -0.40 \, m^{-1} $. (a) Calculate the curvature of the wavefr…