When light strikes a transparent medium, some light is reflected and some is ______________
Fill in the blank(s) with correct word
transmitted or refracted
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A contact lens is made of plastic with an index of refraction of 1.50. The lens has an outer radius of curvature of +2.0 cm and an inner radius of curvature of +2.5 cm. What are the focal length and the power of the lens?
What will be an ideal response?
A Diesel engine uses adiabatic heating to ignite the fuel
Indicate whether the statement is true or false
An initially uncharged hollow metallic sphere with radius of 5 cm has a small object with a charge of -10 µC carefully placed at the center of the sphere through a hole in the latter's surface. With the charge in place, what charge is now present on the outside surface of the sphere?
a. zero c. +4000 µC b. -10 µC d. +10 µC
A child is riding near the outer rim of a freely-rotating playground merry-go-round. What happens if the child walks towards the center?
What will be an ideal response?