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Q11: Helium-neon laser light ( <span class="ql-formula"
Q12: Each pattern shown below would appear on
Q15: A concave mirror has a focal length
Q26: A photon with an energy of
Q30: Benefits and services amount to over _
Q33: Light from a helium-neon laser (
Q34: Technology has facilitated the following key developments
Q56: Light is incident on a double-slit.The
Q60: Find the unknown atomic number and
Q113: People are the common element in all