Multiple Choice Questions (2*20 points) 1. What are the objectives of information extraction from remotely sensed data? A. Identification of similar pixels. B. Grouping of thematic information. C. Interpretation using prior knowledge. D. Making sense of geographic patterns. E. All of the above. 2. Principal components analysis is associated with which of the following? A. Data reduction. B. Training samples. C. Components and Eigenvectors. D. A and C. E. A‚ B and C. 3. What are
Premium Infrared Root mean square Wavelength
the detector. The Jump Start exercises below will help you review frequency‚ wavelength‚ pitch‚ and the Doppler effect. Jump Start 1. What type of wave is a sound wave? A sound wave is a longitudinal waves. 2. Define wave frequency. Wave frequency is the number of crests that pass through at a specified time. 3. What is pitch? A pitch is the sound or sensation of the frequency. 4. Sketch one wavelength of a longitudinal wave. Exploration 1: A Wave Source Moving Towards a Detector
Premium Frequency Doppler effect Wave
Danielle Silverstein PHY 101 Section 10497 March 4‚ 2013 Light up this World Purpose: In this lab experiment‚ LED lights will be used to show how when E&M radiation is absorbed‚ the energy is converted to heat. A drop of isopropyl alcohol will absorb light energy of different colors‚ and the evaporation rate of the alcohol will be measured. The key to this lab is the evaporation rate is directly related to the energy of the light shining on the drop. Materials: * * LEDs
Premium Electromagnetic radiation Light Wavelength
directivity pattern is a result of the difference between the phase velocity of propagation of an electromagnetic wave in air and that in the lens material. Lens antennas are used in radar and metering equipment that operates in the centimeter wavelength range. A lens antenna consists of a lens proper and of a feed. The shape of the lens depends on the refractive index n (the ratio of the phase velocity of propagation of a radio wave in a vacuum to that in the lens). A decelerating lens antenna
Premium Optics Wave Electromagnetic radiation
Beer’s Law Lab Report Abstract: The Beer’s law lab was conducted to determine the optimal wavelength of Co(NO3)2·6H2O with the use of spectrometry. The results determined that the optimal wavelength to study the absorbance of this salt was 500nm. It also demonstrated how transmittance of light and absorbance of light are inversely proportional because absorbance is calculated by multiplying transmittance by a negative log. Introduction: When one is studying chemicals‚ there are many important
Premium Concentration Light Wavelength
solid‚ liquid and gas were determined. Introduction The wavelength of a sinusoidal wave is the spatial period of the wave—the distance over which the wave’s shape repeats. It is usually determined by considering the distance between consecutive corresponding points of the same phase‚ such as crests‚ troughs‚ or zero crossings‚ and is a characteristic of traveling waves and standing waves‚ as well as other spatial wave patterns. Wavelength is commonly designated by the Greek letter lambda. Frequency
Premium Wavelength
Characteristics and Nature of Waves In physics‚ a wave is a disturbance that travels through space and time‚ usually accompanied by the transfer of energy. Waves travel and the wave motion transfers energy from one point to another‚ often with no permanent displacement of the particles of the medium—that is‚ with little or no associated mass transport. They consist‚ instead‚ of oscillations or vibrations around almost fixed locations. For example‚ a cork on rippling water will bob up and down
Premium Wave Wavelength Light
the speed of light‚ either the frequency or the wavelength has to change. The results have shown equivalent values for both of the variables. Thus indicating and proving that the speed of light stays the same after being reflected off a surface. Refraction Refraction is the bending of light through a substance. Different substances bend light at different angles. White light is made up of a full spectrum of colors. Each color has a different wavelength‚ and bends at a different angle. This is the
Premium Light Rainbow Refraction
is made up of gamma rays‚ X-rays‚ ultraviolet‚ visible‚ infrared‚ microwaves and radio waves. What separates these is the frequency and wavelength of each one. A high frequency‚ which is high energy‚ results in a short wavelengthand vice versa. This makes the frequency and wavelength inversely proportional. Infrared radiation has longer electromagnetic wavelengths than that of
Premium Electromagnetic radiation Energy Light
Introduction: To do the lab exercises for this lesson‚ you need to know a little bit about light. White light consists of all the colors of the rainbow mixed together. Diffraction refers to various phenomena which occur when a wave encounters an obstacle. In classical physics‚ the diffraction phenomenon is described as the apparent bending of waves around small obstacles and the spreading out of waves past small openings. Isaac Newton thought that light must be a particle because particles of light
Premium Light Quantum mechanics Optics