When you look at yourself in a 60-cm-tall plane mirror,you see the same amount of your body whether you areclose to the mirror or far away. (Try it and see.) Use raydiagrams to show why this should be true.

The critical angle for a beam of light passing from water into air is 47.6°. This means that all light rays with an angle of incidence in the water that is less than 47.6° will be totally absorbed by the water. not enough information to answer. partially reflected and partially refracted. O totally reflected. O totally refracted.

1) What is the speed of light in a glass(n=1.5)? 2) A man 1.80 m tall stands in front of a vertical plane mirror. What is the minimum height of the mirror, if he is to see his whole body? Assume his eyes are 10 cm below the top of his head.

1. Consider a cuboid made of crown glass which has inner space filled with water. A ray of light is incident onto the 10 cm thick block of glass on the top face of the cuboid at 60◦ from the normal. It then meets the glass-water boundary and is refracted again and continues through a water thickness of 5 cm before reaching another water-glass boundary. The ray of light is again refracted and continues in the 10 cm thick block of glass on the base of the cuboid and eventually exits into air. (a) Draw a clearly labelled diagram of the path the ray of light takes. (b) Calculate all the angles of refraction and incidence at each boundary. (c) Calculate the optical path of the ray of light from the point it is incident on the surface of the cuboid to the point it exits into air on the other end.

A beam of light passes through a .3 block of glass 10.0 cm thick, then through water for a distance of 30.5 cm, and finally through another block of glass 5.0 cm thick. If the refractive index of both pieces of glass is 1.525 and of water is 1.333, .find the total optical path

A concave mirror has a focal length of 15 cm. What is the magnification if the object's distance is 105 cm?A healthy person has a body temperature of 98.6 oF. Use the properties of blackbody radiation to work out the precise wavelength of the peak radiation. (Hint: Convert Fahrenheit degrees into Kelvin (absolute) degrees.)

The incident angle is 60°, in which of the following situation would you observe Total Internal Reflection? nwater = 1.33, nglass= 1.50. Select all apply. 00 00 The light goes from air to water The light goes from water to air The light goes from air to glass The light goes from glass to air The light goes from water to glass The light goes from glass to water none of the above