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Light quick check

A quick check of 3 questions. After you submit, each question shows the right answer and why.

3 of 9 questions, Advanced level. Aimed at the Advanced level, your current depth. Questions you have not answered yet come first.

Show all 9 questions

ScientistQuestion 1 of 3

Using c = 3.00 × 10⁸ m/s, what is the speed of light in diamond (n = 2.419), in units of 10⁸ m/s, to two decimal places?

AdvancedQuestion 2 of 3

What is the critical angle, in degrees to one decimal place, for light travelling inside crown glass (n = 1.52) towards air (n = 1.00)?

AdvancedQuestion 3 of 3

Taking h = 6.626 × 10⁻³⁴ J s and c = 3.00 × 10⁸ m/s, what is the energy of one photon of green light with wavelength 550 nm, in units of 10⁻¹⁹ J, to two decimal places?