1. What is the temperature (in kelvin) of an object emitting a peak wavelength of 279.17 nanometers? Round your final answer to two decimal places
2. A heating element in an oven heats to 6,006.95 kelvin. What is the peak wavelength of light emitted by this heating element in meters? The final answer in Scientific Notation.
3. An object is placed 13 centimeters from a mirror which then forms an image at -40 centimeters. Find the focal length of the mirror (in centimeters). Round your final answer to two decimal places.
4. A lens, with a focal length of 13 centimeters, forms an image at -26 centimeters. How far (in centimeters) from the lens was the object placed? Round your final answer to two decimal places.
5. A 22 centimeters tall object is placed in front of a concave mirror which then forms an image with a height of -6 cm at a distance of 6 centimeters. How far away from the mirror (in centimeters) was the object placed? Round your final answer to the two decimal places.
6. A 18.81 meter tall object is placed 22.22 meters from a truck mirror. If an image is formed -1.46 meters from the mirror, what is the height (in meters) of the image? Round your final answer to two decimal places.
7. What is the frequency (in hertz) of a 4.68 X 10^-19 joule photon? The answer in Scientific Notation. Be sure to use h = 6.63x10^-34 J^.s.
8. Find the energy of a photon (in joules) with a frequency of 4.61x10¹⁶ hertz. The answer in Scientific Notation.Be sure to use h = 6.63x10^-34J^.s.
9. The speed of light in an unknown medium is measured to be 2.43 x 10⁸ m/s. What is the index of refraction of the medium? Round your final answer to two decimal places.
10. The index of refraction in a plastic rod is 1.85. What is the speed of light in this plastic rod (in meters per second)?The answer in Scientific Notation.