Physical Sciences Break 1.0
Physical Sciences Grade 10-11-12.
Category: GRADE 11 PHYSICAL SCIENCES
Waves,Sound & light
QUESTION 1 A diamond glitters in light because of its high refraction index of 2,42 and the small critical angle of the diamond-air boundary. 1. Calculate the critical angle of a diamond-air interface. Take the refraction index of air as 1. (4) The angle…
Test yourself GR11
Consider the following molecules and answer the questions that follow. A.NH3 B.CO2 C.C2H2 D.H20 E.BH3 Which molecule: 1.1.1 Contains a triple bond? [1] 1.2 Is trigonal planar? [1] 1.3 Is angular in shape and contains a centre atom with two lone pairs? [1] 2.Which…
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