Physics

• What type of wave is a combination of electric and magnetic field? Electromagnetic Wave
• What do you call the bundles of wave energy? - Neutrons
• Among the EM waves in the EM spectrum, which has the longest wavelength? - Radio Wave
• Which of the following EM wave Has the lowest energy? Radio Wave
• Which of the following EM wave has the highest frequency? - Gamma Ray
• In the visible spectrum, which color has the longest wavelength? - Radio Wave
• Who discovered radio waves? - Heinrich Hertz
• What type of EM wave is used in radar? - Microwave
• What type of EM wave is very strong that can kill living cells and is used to treat cancer through the process called radiotherapy? - X-ray Gamma Ray
• This is an application of visible light EXCEPT- Fluorescence
• This is NOT an effect of UV radiations exposure - Detection of Bone fractures
• The bouncing off of light rays when it hits a surface is called? -Reflection
• The bending of light when it travels from one medium to another of different optical densities is called - Refraction
• It is the geometric center of the lens - Vertex
• Convex mirrors produce which type of images? - Virtual
• Where should an object be placed in front of a concave mirror so that no image is formed? - Atthefocalpoint
• Where should be placed in front of a concave mirror so that the image will have the exact same size as the object? - At the center of curvature
• What optical device is found in a periscope? - Planemirror
• What tool is used by Astronomers to see far away objects? - Telescope
• What device is used for recording visual images in form of photographs, film, or video signals? - camera
• What optical instrument consist of a combination of lenses magnifying an object several hundred times? - Compound microscope
• This aids scientist and engineers in identifying different substances. - Spectrometer
• The magnetic field surrounding a magnet is strongest at - poles
• The magnetic field of a current-carrying coil is strongest at the - center
• What transformation can take place in an electric motor? - Mechanical energy to Electrical energy