The diagram above shows how infrared radiation relates to the visible spectrum. Select the two options that best complete the following sentence.Compared to red light, infrared radiation has:higher amplitudeshigher frequencieslonger wavelengthslower frequenciesI'm not sure

Red light has a ......... wavelength than violet light. Longer Shorter  Equal

Every signal in an IR spectrum has the following 3 characteristics:Select answer from the options belowwavenumber, intensity, frequencywavenumber, intensity, shapewavelength, intensity, frequency

Which of the following does NOT occur when the temperature of a red-hot object increases?The amount of electromagnetic radiation which it emits increases at all wavelengthsIt emits more visible lightThe potential energy of the particles which make up the object decreasesThe shortest wavelength of the radiation which it emits decreases2The radiation produced by an infrared laser has a wavelength of 1054 nm.  Convert this wavelength to metres.1.054 × 10-9 m1.054 × 10-3 m1.054 × 10-12 m1.054 × 10-6 m3What happens to an object when it emits energy faster than it absorbs energy?Its temperature decreasesIts temperature remains constantIts temperature increasesIt is impossible to say what happens to the temperature of the object without knowing the specific heat capacity of the material from which it is made4Which of the following statements is incorrect?The intensity of the radiation which we receive from the Sun can be measured in joules per square metreThe intensity of the radiation which we receive from the Sun can be measured in watts per square metreThe intensity of the radiation which we receive from the Sun can be measured in joules per second per square metreThe intensity of the radiation which we receive from the Sun is higher at the Equator than it is at the poles5Which of the following statements is incorrect?Some of the radiation from the Sun which reaches the Earth is reflected by clouds and atmospheric gasesAll of the infrared radiation from the Sun which reaches the surface of the Earth is absorbedIf the overall rate at which energy from the Sun is absorbed by the Earth is greater than the overall rate at which energy is emitted into space, the temperature of the Earth will increaseIf the overall rate at which energy from the Sun is absorbed by the Earth is less than the overall rate at which energy is emitted into space, the temperature of the Earth will decrease

Name the spectrum of radiations that includes both microwaves and infrared radiation.

Infrared rays penetrate the tissues of the body better than visible light. What is this property used for in medical applications?Question 12Select one:a.Magnetic resonance imagingb.Thermographyc.Ultrasound imagingd.X-ray imaging